This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A076951 #7 Dec 05 2013 19:55:47
%S A076951 1,1,3,0,205,0,39991,0,57,5905,9090909091,0,8230246567621,0,
%T A076951 10371206370520815,0,17361641481138401521,0,37275544492386193492507,0,
%U A076951 22706531343006,0,326583187044036098379401213863,0,45035996273705
%N A076951 Smallest k > 0 such that nk-1 is an n-th power, or 0 if no such number exists.
%C A076951 p divides a(p) for odd primes p. a(p) = A081209(p-1) = p*A081215(p-1) for odd primes p. a(p)/p = A081215(p-1) = {1,41,5713,826446281,633095889817,1021273028302258913,...} - _Alexander Adamchuk_, Nov 12 2006
%Y A076951 Cf. A076952.
%Y A076951 Cf. A081209, A081215.
%K A076951 nonn
%O A076951 1,3
%A A076951 _Amarnath Murthy_, Oct 20 2002
%E A076951 More terms from _Sascha Kurz_, Jan 21 2003