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 A111243 #4 Mar 30 2012 17:38:08 %S A111243 1,2,3,4,6,7,11,12,16,17,24,25,26,28,32,34,35,52,116,154,222,232,256, %T A111243 279,504,568,598,634,844,909,1306,1307,1505,1704,2016,2050,2164,2325, %U A111243 2497,2533,2630,2631,2701,3130,3225,3322,3411,3524,3785,4243,4244,4245 %N A111243 Where records appear in A109890. %Y A111243 Cf. A109890, A111242. %K A111243 nonn %O A111243 1,2 %A A111243 _N. J. A. Sloane_, Oct 30 2005 %E A111243 More terms from _David Wasserman_, Jan 07 2009