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A032377 Numbers n such that 55*2^n+1 is prime. 0
4, 8, 16, 22, 32, 94, 220, 244, 262, 286, 344, 356, 392, 1996, 2744, 5158, 6964, 13484, 15164, 197350, 300632, 309560, 363892, 673708, 1177924, 1308148, 1669798 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..27.

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: A220501 A053688 A036302 * A133690 A097057 A160746

Adjacent sequences:  A032374 A032375 A032376 * A032378 A032379 A032380

KEYWORD

nonn

AUTHOR

James R. Buddenhagen

EXTENSIONS

More terms from Hugo Pfoertner, Jun 20 2003

More terms (from http://www.prothsearch.net/riesel.html), Joerg Arndt, Apr 07 2013

STATUS

approved

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Last modified November 23 13:52 EST 2014. Contains 249851 sequences.