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 A068276 #8 May 02 2012 12:07:58 %S A068276 1,392,5765144,3181273031384,65865666949993359176, %T A068276 51166369594150205333793355592, %U A068276 1491342760953091009621584639091222226600,1630938910749494351643174313469316936138973479205208 %N A068276 1/9 the number of colorings of an n X n rhombic hexagonal array with 9 colors. %C A068276 Terms for rhombic- and staggered- hexagonal arrays are the same for n in 1..4. %Y A068276 Cf. A068239-A068305, A000332, A002417, A027441, A212162, A212163. %K A068276 nonn %O A068276 1,2 %A A068276 _R. H. Hardin_, Feb 24 2002 %E A068276 a(6)-a(8) from _Alois P. Heinz_, May 02 2012