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Search: id:A032361
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A032361 Numbers n such that 23*2^n+1 is prime. +0
2
1, 9, 13, 29, 41, 49, 69, 73, 341, 381, 389, 649, 1961, 3929 (list; graph; listen)
OFFSET

1,2

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: A097539 A107913 A098074 this_sequence A031196 A151725 A146864

Adjacent sequences: A032358 A032359 A032360 this_sequence A032362 A032363 A032364

KEYWORD

nonn,hard

AUTHOR

Jim Buddenhagen (jbuddenh(AT)gmail.com)

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


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