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 A068295 #12 Jun 26 2017 01:24:26 %S A068295 1,60,21060,44172540,553785175620,41503847098683420, %T A068295 18595665812583520041060,49808667823922052573513153300, %U A068295 797553247913411612275102392386088300,76343133584713932892876357250654965547341140,43684986787209742051887297631700585399912369700067860 %N A068295 1/6 the number of colorings of an n X n octagonal array with 6 colors. %Y A068295 Cf. A068239-A068305, A000332, A002417, A027441, A212208, A212209. %K A068295 nonn %O A068295 1,2 %A A068295 _R. H. Hardin_, Feb 24 2002 %E A068295 a(7)-a(8) from _Alois P. Heinz_, May 04 2012 %E A068295 a(9)-a(11) from _Andrew Howroyd_, Jun 25 2017