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A127998 Numbers n such that (24^n - 1)/23 is prime. +0
13
3, 5, 19, 53, 71, 653, 661, 10343 (list; graph; listen)
OFFSET

1,1

COMMENT

10343 is a term found by Richard Fischer in 2004. - Alexander Adamchuk (alex(AT)kolmogorov.com), Feb 11 2007

REFERENCES

H. Dubner, Generalized repunit primes, Math. Comp., 61 (1993), 927-930.

LINKS

H. Lifchitz, Mersenne and Fermat primes field

MATHEMATICA

Select[Prime[Range[100]], PrimeQ[(24^#-1)/23]&]

CROSSREFS

Cf. A028491, A004061, A004062, A004063, A004023, A005808, A004064, A016054, A006032, A006033, A006034, A006035. Cf. A127995, A127996, A127997, A127999, A128000, A098438, A128002, A128003, A128004, A128005.

Sequence in context: A065964 A148546 A148547 this_sequence A106918 A055452 A077458

Adjacent sequences: A127995 A127996 A127997 this_sequence A127999 A128000 A128001

KEYWORD

hard,more,nonn

AUTHOR

Alexander Adamchuk (alex(AT)kolmogorov.com), Feb 11 2007

EXTENSIONS

More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 05 2008

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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