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A014956 Positive integers n such that n divides 14^n - 1. 7
1, 13, 169, 2041, 2197, 26533, 28561, 114413, 320437, 344929, 371293, 1487369, 4165681, 4484077, 4826809, 17962841, 19335797, 24355253, 50308609, 54153853, 58293001, 62748517, 77457601, 233516933, 249302027, 251365361, 316618289 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Also, positive integers n such that n divides A014929(n).

13 divides a(n) for n>1. All powers of 13 are the terms. All a(n) that are not the powers of 13 are divisible either by 157 or 677 or both. - Alexander Adamchuk, May 14 2010

Prime divisors of a(n) in the order of their appearance {13, 157, 677, 11933, 122147, 52807, ...}. - Alexander Adamchuk, May 16 2010

LINKS

Table of n, a(n) for n=1..27.

CROSSREFS

Cf. A067945, A014945, A067946, A014946, A067947, A014949, A068382, A014950, A068383, A014951, A116621, A177805, A014957, A177807, A128358, A128360

Cf. A177914, A128394

Sequence in context: A245228 A093151 A188869 * A171287 A045593 A045597

Adjacent sequences:  A014953 A014954 A014955 * A014957 A014958 A014959

KEYWORD

nonn

AUTHOR

Olivier Gérard

EXTENSIONS

2 more terms from R. J. Mathar, Mar 05 2008

a(8)-a(23) from Alexander Adamchuk, May 14 2010

a(24)-a(44) from Alexander Adamchuk, May 16 2010

Edited by Max Alekseyev, Sep 10 2011

STATUS

approved

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Last modified September 20 20:12 EDT 2019. Contains 327247 sequences. (Running on oeis4.)