%I A125634
%S A125634 2,127,2819,2819,2342959,2342959,47579927,3620189879,513127081109,
%T A125634 8388044818849,77460384757423,2649283656602003,252317900773542353,
%U A125634 2467410166021233673,50407811312994280933,179869204428830533411
%N A125634 Smallest prime p such that 19^n divides p^18 - 1.
%H A125634 W. Keller and J. Richstein <a href="http://www.mscs.dal.ca/~joerg/res/
               fq.html">Fermat quotients that are divisible by p</a>.
%o A125634 (PARI) See A125609 - Martin Fuller (martin_n_fuller(AT)btinternet.com), 
               Jan 11 2007
%Y A125634 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. A125632 = Smallest prime p 
               such that 13^n divides p^12 - 1. Cf. A125633 = Smallest prime p such 
               that 17^n divides p^16 - 1. Cf. A125635 = Smallest prime p such that 
               257^n divides p^256 - 1.
%Y A125634 Sequence in context: A065381 A141928 A062588 this_sequence A075596 A092832 
               A105761
%Y A125634 Adjacent sequences: A125631 A125632 A125633 this_sequence A125635 A125636 
               A125637
%K A125634 hard,nonn
%O A125634 1,1
%A A125634 Alexander Adamchuk (alex(AT)kolmogorov.com), Nov 28 2006
%E A125634 More terms from Martin Fuller (martin_n_fuller(AT)btinternet.com), Jan 
               11 2007