Robbins constant: A073012
Robbins numbers: A005130 *
Robbins numbers: see also A005160
Robbins numbers: see also matrices, alternating sign
Robbins triangle: A048601 *, A029656 /A029638 , A102610
Robinson's constant: A001205 *
Rogers-Ramanjuan continued fraction: A050203
Rogers-Ramanujan identities: A003114 *, A003106 *, A006141
Roman numerals for n: A006968 *
Roman numerals: see also (1) A002904 A002963 A002964 A003587 A003588 A014287 A036741 A036741 A036742 A036743 A036746 A036786
Roman numerals: see also (2) A036787 A036788
Roman numerals: see also Index entries for sequences related to number of letters in n
Ron's sequence: A006255 , A066400 , A066401
Rooks:: A000903 , A006071
rooted trees , sequences related to (start):
rooted trees , see also mobiles , trees
rooted trees , A000081 * (unlabeled), A000169 * (labeled)
rooted trees, (2,3), A001005
rooted trees, 1-2, A006893
rooted trees, 2-ary, see: rooted trees, binary
rooted trees, 2-colored, A000151 , A004113 , A005753 , A029856 , A031148 , A032306 , A038049 , A038053 , A038055 *, A038057 *, A038075 , A038077 , A052316
rooted trees, 3-ary, see: rooted trees, ternary
rooted trees, 3-colored, A006964 , A029857 , A038050 , A038059 *, A038061 *, A038076 , A038079 , A047891
rooted trees, 4-ary, A019498 , A036606 , A036609 -A036614 , A036627 -A036633
rooted trees, 4-colored, A052763
rooted trees, 5-ary, A019499 , A036607 , A036615 -A036620 , A036634 -A035540
rooted trees, 5-colored, A052788
rooted trees, 6-ary, A019500 , A036608 , A036621 -A036626 , A036641 -A036647
rooted trees, 7-ary, A019501
rooted trees, achiral, A003240 , A003241 *, A005627 , A003237
rooted trees, asymmetric (1): A004111 *, A005355 , A05754, A007560 , A022553 , A031148 , A032101 -A032105 , A035353 , A038075 , A038076
rooted trees, asymmetric (2): A038077 , A038079 , A038081 -A038093 , A048829 -A048832 , A052301 , A052325 , A055327 -A055333
rooted trees, AVL, A006265 , A029758 , A036662
rooted trees, B-trees, A014535 , A037026
rooted trees, binary (1): A000108 (Catalan numbers), A000671 , A001190 * (Wedderburn-Etherington numbers), A001699 , A002572 , A002844 , A004019 *
rooted trees, binary (2): A005588 , A006223 , A006365 , A006679 , A014167 , A014168 , A014169 , A014171 , A019275 , A035010 , A035102 , A036602
rooted trees, binary (3): A036587 , A036588 , A036589 , A036590 , A036591 , A036592 , A036593 , A036594 , A036595 , A036596 , A036597 , A036589
rooted trees, binary (4): A036599 , A036600 , A036601 , A036656 -A036658 , A036661 , A036774 *, A063895
rooted trees, binary, see also: rooted trees, AVL
rooted trees, boron, A000671 *
rooted trees, by generators, A007151 , A108521 *, A108522 -A108525
rooted trees, by internal nodes, A108530
rooted trees, carbon, A000678
rooted trees, chiral planted, A005628
rooted trees, codes for, A005517 , A005518
rooted trees, composite binary, A035102
rooted trees, constant, A051491 , A051492 , A051496
rooted trees, directed, A006964 *
rooted trees, evolutionary, A007151
rooted trees, fixed points in, A005200 *, A005202
rooted trees, game, A048829 , A048830 , A048831 , A048832
rooted trees, genealogical, A003686
rooted trees, Greg, A005264 *, A048160 , A052300 *, A052301
rooted trees, height 02, A000041 (partition numbers), A000110 (Bell numbers), A000551 *
rooted trees, height 03, A000235 *, A000258 , A000552 *, A001383 , A001970 , A036371 , A036443 , A036627 , A036634 , A036641 , A038082 , A048808 , A050351
rooted trees, height 04 (1): A000299 *, A000307 , A000553 *, A001384 , A007713 , A036372 , A036419 , A036587 , A036593 , A036609 , A036615
rooted trees, height 04 (2): A036621 , A036628 , A036635 , A036642 , A038084 , A038088 , A048809 , A050352
rooted trees, height 05 (1): A000342 *, A000357 , A001385 , A007714 , A036588 , A036373 , A036420 , A036594 , A036610 , A036616 , A036622
rooted trees, height 05 (2): A036629 , A036636 , A036643 , A036662 , A038085 , A038089 , A048810 , A050353
rooted trees, height 06 (1): A000393 *, A000405 , A034823 , A036589 , A036374 , A036421 , A036595 , A036611 , A036617 , A036623 , A036630
rooted trees, height 06 (2): A036637 , A036644 , A038085 , A038090 , A048811
rooted trees, height 07 (1): A000418 *, A001669 , A034824 , A036590 , A036375 , A036422 , A036596 , A036612 , A036618 , A036624 , A036631
rooted trees, height 07 (2): A036638 , A036645 , A038086 , A038091 , A048812
rooted trees, height 08 (1): A000429 *, A034825 , A036376 , A036423 , A036591 , A036597 , A036613 , A036619 , A036625 , A036632 , A036639
rooted trees, height 08 (2): A036646 , A038087 , A038092 , A048813
rooted trees, height 09, A034826 , A036647 , A036424 , A036592 , A036598 , A036614 , A036620 , A036626 , A036633 , A048814
rooted trees, height 10, A036425 , A036599 , A048815
rooted trees, height 11, A036426 , A036600
rooted trees, height 12, A036427 , A036601
rooted trees, height of (1): A001699 , A001853 , A001854 , A001864 , A002658 , A003686 , A005588 , A006223 , A006893 , A007715 , A036370
rooted trees, height of (2): A036437 , A036606 , A036607 , A036608 , A038081 , A038093 , A048816 , A072638
rooted trees, Husimi, A000237 , A035082 *, A035086 , A035087 *, A035351 , A035352 , A035353 , A035357
rooted trees, hybrid binary, A007863 , A011270 , A011272 , A011274
rooted trees, identity: see rooted trees, asymmetric.
rooted trees, increasing: A008292
rooted trees, involution: A032035 , A091481 *, A091486 *, A091488
rooted trees, lableling (Goebel), A061773 , A061775 , A005517 , A005518
rooted trees, leaves, (cont): A055897
rooted trees, leaves, A003227 , A008292 , A055277 *, A055278 -A055289 , A055302 *, A055303 -A055313 , A055327 -A055333
rooted trees, linear, see rooted trees, planar, planted
rooted trees, M-type, A006959 , A052315
rooted trees, matched, A005750 , A005753 , A005754
rooted trees, nodes, A055544
rooted trees, noncrossing, A006629 , A023053 , A030980 , A030981 , A030982 , A030983 , A045721 , A045722 , A045737 , A045738
rooted trees, normalized total height, A000435 , A001863
rooted trees, of subsets, A005804 , A005172 , A036249 *, A048802 *
rooted trees, ordered, see: rooted trees, planar
rooted trees, oriented, A000151 *, A005750 , A005753 , A005754
rooted trees, partially labeled, A000107 , A000444 , A000524 , A000525
rooted trees, permutation, A005355 , A050383 *
rooted trees, phylogenetic, A000311 , A005804 , A006677 , A006678 , A006679
rooted trees, planar, A000758 , A000957 , A000958 , A001895 , A003239 *, A007852 -A007860 , A014300 , A014301 , A022553 , A032010 , A032028 , A033297 , A047891
rooted trees, planar, A106361 , A106362
rooted trees, planar, dyslexic (1): A032047 , A032048 , A032065 , A032066 , A032068 , A032101 -A032105 , A032119 , A032128 , A032129 *
rooted trees, planar, dyslexic (2): A032132 , A032133 , A038035 *
rooted trees, planar, planted, A000108 * (Catalan numbers), A032009 , A032027 , A032030 , A050351 , A050352 , A050353 , A014486
rooted trees, plane, encodings of (start): (For the subsets of A014486 the sequence in parentheses gives the positions therein.)
rooted trees, plane, encoded as totally balanced binary strings: (01) A014486 *, A057517 (A057518 ), A057119 (A057120 ), A057122 (A057123 ), A057547 (A057548 ), A061855 (A061856 )
rooted trees, plane, encoded as totally balanced binary strings: (02) A075165 (A075161 ), A080069 (A080068 ), A080118 (A080119 ), A080263 (A080265 ), A080293 (A080295 ), A080299 (A080298 )
rooted trees, plane, encoded as totally balanced binary strings: (03) A080973 (A080975 ), A080971 (A080970 ), A080981 (A080980 ), A081292 (A081291 ), A083932 (A083934 ), A083936 (A083930 ),
rooted trees, plane, encoded as totally balanced binary strings: (04) A083937 (A072795 ), A083939 (A083938 ), A083941 (A083940 ), A002542 (A083942 ), A084107 (A084108 ), A085224 (A085223 )
rooted trees, planted, A003227 , A005202 , A006677 , A006678 , A006679 , A006894 , A007151
rooted trees, pointed, A000107 *, A000243 , A000312 *, A008295
rooted trees, powers of enumerator, A000106 , A000242 , A000300 , A000343 , A000395 , A000439 , A000529
rooted trees, prime binary, A035010
rooted trees, projective plane: A006079 , A006080 *, A066317
rooted trees, quartic planted, A000598
rooted trees, red-black, A001131 , A001137 , A001138
rooted trees, search, A007077 , A007078 , A019497 -A019501
rooted trees, series-reduced planted (1): A000669 , A001678 *, A001859 , A001860 , A031148 , A032030 , A032068 , A032105 , A032119
rooted trees, series-reduced planted (2): A032132 , A032133 , A050381
rooted trees, series-reduced, A000311 *, A001679 *, A005804 , A005805 , A006677 , A058735 , A058737 , A059123 *, A007827 *
rooted trees, spanning, A030438
rooted trees, steric planted, A000625 , A000628
rooted trees, symmetries in planted, A003609 , A003611 , A003613 , A003615 , A007135 , A007136
rooted trees, ternary, A000598 *, A002658 , A006894 , A019497 , A036370 -A036376 , A036419 -A036427 , A036437 , A036443
rooted trees, triangle, A008295 , A033185 , A034781 , A036370 , A036437 , A036602 , A036606 , A036607 , A036608
rooted trees, trimmed, A002955 *, A052318 *, A052319
rooted trees, trimmed, see also: trees, with a forbidden limb
rooted trees, unary-binary, A002658 , A029766 *, A072638
rooted trees, with a forbidden limb, A002955 , A014267 , A014276
rooted trees, with(out) a primary branch, A027415 , A027416
rooted trees: see also (1): A000226 , A001257 , A003120 , A003238 , A005373 , A006850 , A006871 , A006900 , A006930 , A007439 , A007562 ,
rooted trees: see also (2): A027852 , A029855 , A032305 , A036765 -A036778 , A001257 , A050395 , A050396 , A074045
rooted trees: see also mobiles , trees
rotation distance: A005152
royal paths in a lattice: A006318 *