A322915 Numbers k such that 301*2^k+1 is prime.

4, 184, 344, 352, 392, 1060, 2452, 7360, 9736, 10324, 21316, 22752, 27272, 27744, 28068, 55628, 72864, 88472, 95872, 124628, 218584, 424448, 517960, 880792, 1455620

Offset

1,1

Links

Table of n, a(n) for n=1..25.

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[301*2^# + 1] &] (* Robert Price, Dec 30 2018 *)

Crossrefs

Cf. A002255, A050527.

Sequence in context: A278693 A172018 A295285 * A221046 A024266 A174772

Adjacent sequences: A322912 A322913 A322914 * A322916 A322917 A322918

Keyword

nonn,hard,more

Author

Robert Price, Dec 30 2018

Status

approved