login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A124277 Primes that do not divide 2^(3^n)+97 for any n. 0
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 (list; graph; refs; listen; history; text; internal format)
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

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 10 19:52 EDT 2020. Contains 336381 sequences. (Running on oeis4.)