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Search: id:A032365
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A032365 Numbers n such that 31*2^n+1 is prime. +0
2
8, 60, 68, 140, 216, 416, 1808, 1944, 9096, 76596, 93168 (list; graph; listen)
OFFSET

1,1

LINKS

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: A047867 A002538 A112424 this_sequence A074423 A054401 A159727

Adjacent sequences: A032362 A032363 A032364 this_sequence A032366 A032367 A032368

KEYWORD

nonn,hard

AUTHOR

Jim Buddenhagen (jbuddenh(AT)gmail.com)

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.


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