A032399 Numbers k such that 99*2^k+1 is prime.

1, 2, 5, 6, 10, 11, 22, 31, 33, 34, 41, 42, 53, 58, 65, 82, 126, 143, 162, 170, 186, 189, 206, 211, 270, 319, 369, 410, 433, 631, 894, 1617, 2025, 4029, 4082, 5118, 6875, 8337, 14723, 16627, 20341, 24653, 32054, 47985, 57814, 62361, 63558, 69947

Offset

1,2

Links

Joerg Arndt, Table of n, a(n) for n = 1..68 (from http://www.prothsearch.com/riesel1.html)

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

Prog

(PARI) is(n)=ispseudoprime(99*2^n+1) \\ Charles R Greathouse IV, Jun 07 2017

Crossrefs

Sequence in context: A273324 A238096 A064572 * A276496 A007969 A187902

Adjacent sequences: A032396 A032397 A032398 * A032400 A032401 A032402

Keyword

nonn

Author

James R. Buddenhagen

Status

approved