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A032411 Numbers n such that 123*2^n+1 is prime. 0
6, 8, 17, 21, 29, 32, 46, 57, 69, 128, 141, 268, 333, 476, 742, 832, 1173, 1677, 5068, 9568, 15453, 34761, 39992, 41213, 41852, 93982, 100748, 102929, 164069 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..29.

Ray Ballinger, Proth Search Page

Ray Ballinger and Wilfrid Keller, List of primes k.2^n + 1 for k < 300

Y. Gallot, Proth.exe: Windows Program for Finding Large Primes

Wilfrid Keller, List of primes k.2^n - 1 for k < 300

Index entries for sequences of n such that k*2^n-1 (or k*2^n+1) is prime

CROSSREFS

Sequence in context: A127400 A025081 A162951 * A058098 A112158 A093479

Adjacent sequences:  A032408 A032409 A032410 * A032412 A032413 A032414

KEYWORD

nonn

AUTHOR

James R. Buddenhagen

EXTENSIONS

Extended by Hugo Pfoertner, Jul 2 2003

STATUS

approved

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Last modified May 19 02:47 EDT 2013. Contains 225428 sequences.