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 A068392 #10 Mar 14 2016 03:33:42 %S A068392 0,2,11,92,2100,140834 %N A068392 Number of partitions of n X n checkerboard into two edgewise-connected sets, counting partitions equal under rotation or reflection only once. %Y A068392 Cf. A068381, A068393. %K A068392 nonn,more %O A068392 1,2 %A A068392 _R. H. Hardin_, Mar 03 2002