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 A068298 #8 May 04 2012 15:03:29 %S A068298 1,336,3120768,803828696832,5741675134355623680, %T A068298 1137328489147110235271041536,6247483084664157761011047760647844608, %U A068298 951691164013203510495082805169876313498509196032 %N A068298 1/9 the number of colorings of an n X n octagonal array with 9 colors. %Y A068298 Cf. A068239-A068305, A000332, A002417, A027441, A212208, A212209. %K A068298 nonn %O A068298 1,2 %A A068298 _R. H. Hardin_, Feb 24 2002 %E A068298 a(6)-a(8) from _Alois P. Heinz_, May 04 2012