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 A058954 #5 Mar 31 2012 13:50:36 %S A058954 1,1811,2612845,2612894,2613570,2613705,3468358644,3468361769, %T A058954 3468361803,151165506189,151165506541,151165506658,151165506665, %U A058954 151165506963,151165506994,151165507330,151165507334,151165512502 %N A058954 Numbers n such that A058933(n)=A058933(n+1). %Y A058954 Cf. A058933. %K A058954 nonn %O A058954 1,2 %A A058954 _Naohiro Nomoto_, Jan 13 2001 %E A058954 a(7)-a(18) from _Donovan Johnson_, Apr 09 2010