A124277 Primes that do not divide 2^(3^n)+97 for any n.

2, 13, 17, 19, 23, 31, 37, 41, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 229, 233, 241, 251, 257, 269, 271, 277, 281, 283, 293, 307, 313, 317

Offset

1,1

Comments

To check if p divides 2^(3^n)+97 for some n, we need to test only n from 1 to phi(p-1).

Links

Table of n, a(n) for n=1..56.

Crossrefs

Cf. A123239.

Sequence in context: A158845 A163786 A153507 * A038889 A152652 A142339

Adjacent sequences: A124274 A124275 A124276 * A124278 A124279 A124280

Keyword

nonn

Author

A.K. Devaraj, Oct 24 2006

Extensions

Corrected and edited by Max Alekseyev, Oct 30 2006

Status

approved