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A125632 Smallest prime p such that 13^n divides p^12 - 1. 21

%I #7 Apr 03 2014 11:35:07

%S 2,19,239,239,220861,7654109,533810141,533810141,822557039,

%T 38050596989,2395794301259,58713568184837,358661570404751,

%U 22771419458231473,65106791321062951,1951482088631313647,13942901952235522979

%N Smallest prime p such that 13^n divides p^12 - 1.

%H W. Keller and J. Richstein <a href="http://www1.uni-hamburg.de/RRZ/W.Keller/FermatQuotient.html">Fermat quotients that are divisible by p</a>.

%o (PARI) See A125609

%Y Cf. A125609 = Smallest prime p such that 3^n divides p^2 - 1. Cf. A125610 = Smallest prime p such that 5^n divides p^4 - 1. Cf. A125611 = Smallest prime p such that 7^n divides p^6 - 1. Cf. A125612 = Smallest prime p such that 11^n divides p^10 - 1. Cf. A125633 = Smallest prime p such that 17^n divides p^16 - 1. Cf. A125634 = Smallest prime p such that 19^n divides p^18 - 1. Cf. A125635 = Smallest prime p such that 257^n divides p^256 - 1.

%K hard,nonn

%O 1,1

%A _Alexander Adamchuk_, Nov 28 2006

%E More terms from _Martin Fuller_, Jan 11 2007

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Last modified March 28 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)