A322972 Numbers k such that 349*2^k+1 is prime.

10, 26, 38, 46, 1114, 2294, 26566, 115870, 433066, 561646

Offset

1,1

Links

Table of n, a(n) for n=1..10.

Ray Ballinger, Proth Search Page

Ray Ballinger and Wilfrid Keller, List of primes k.2^n + 1 for 300 < k < 600

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

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

Eric Weisstein's World of Mathematics, Proth Prime

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

Mathematica

Select[Range[1000], PrimeQ[349*2^# + 1] &] (* Robert Price, Jan 01 2019 *)

Crossrefs

Sequence in context: A262998 A245021 A045039 * A080059 A071348 A361259

Adjacent sequences: A322969 A322970 A322971 * A322973 A322974 A322975

Keyword

nonn,more,hard

Author

Robert Price, Jan 01 2019

Status

approved