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Search: id:A167666
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| A167666 |
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Triangle read by rows given by [1,1,-4,2,0,0,0,0,0,0,0,...] DELTA [1,0,0,1,0,0,0,0,0,0,0,...] where DELTA is the operator defined in A084938. |
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+0
3
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| 1, 1, 1, 2, 3, 1, 0, 4, 5, 1, 0, 0, 6, 7, 1, 0, 0, 0, 8, 9, 1, 0, 0, 0, 0, 10, 11, 1, 0, 0, 0, 0, 0, 12, 13, 1, 0, 0, 0, 0, 0, 0, 14, 15, 1, 0, 0, 0, 0, 0, 0, 0, 16, 17, 1, 0, 0, 0, 0, 0, 0, 0, 0, 18, 19, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 20, 21, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 22, 23, 1, 0, 0, 0, 0, 0, 0, 0, 0
(list; table; graph; listen)
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OFFSET
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0,4
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COMMENT
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Row sums = A111284(n+1), Diagonal sums = A109613(n).
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EXAMPLE
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Triangle begins : 1 ; 1,1 ; 2,3,1 ; 0,4,5,1 ; 0,0,6,7,1 ; 0,0,0,8,9,1 ; 0,0,0,0,10,11,1 ; ...
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CROSSREFS
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Cf. A000012, A005408, A005843
Sequence in context: A082839 A130717 A137396 this_sequence A115352 A038554 A100329
Adjacent sequences: A167663 A167664 A167665 this_sequence A167667 A167668 A167669
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KEYWORD
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nonn,tabl
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AUTHOR
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Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Nov 08 2009
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