|
Search: id:A006598
|
|
|
| A006598 |
|
Numbers n such that 2^{2n+1} - 2^{n+1} + 1 is a prime.
(Formerly M3098)
|
|
+0
2
|
|
| 1, 3, 23, 36, 39, 56, 75, 83, 119, 120, 176, 183, 228, 683, 1520
(list; graph; listen)
|
|
|
OFFSET
|
1,2
|
|
|
REFERENCES
|
J. Brillhart et al., Factorizations of b^n +- 1. Contemporary Mathematics, Vol. 22, Amer. Math. Soc., Providence, RI, 2nd edition, 1985; and later supplements.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
|
|
LINKS
|
J. Brillhart et al., Factorizations of b^n +- 1, Contemporary Mathematics, Vol. 22, Amer. Math. Soc., Providence, RI, 3rd edition, 2002.
S. S. Wagstaff, Jr., The Cunningham Project
|
|
MATHEMATICA
|
Do[ If[ PrimeQ[ 2^(2n + 1) - 2^(n + 1) + 1 ], Print[n] ], {n, 1, 4000} ]
|
|
CROSSREFS
|
Cf. A007670.
Sequence in context: A058302 A133213 A138465 this_sequence A106892 A116893 A106066
Adjacent sequences: A006595 A006596 A006597 this_sequence A006599 A006600 A006601
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
N. J. A. Sloane (njas(AT)research.att.com), Robert G. Wilson v (rgwv(AT)rgwv.com)
|
|
|
Search completed in 0.002 seconds
|
