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 A068249 #11 May 03 2012 16:49:16 %S A068249 1,123933504,607054532700510,42295002762341131520, %T A068249 221621606435023540827375,227499908955471802467974016, %U A068249 76749558468512064584917217484,11559255724071428199019433809920,945121792213234612017996840421965,47886238153764555711259823337784000 %N A068249 1/6 the number of colorings of a 6 X 6 staggered hexagonal array with n colors. %H A068249 Alois P. Heinz, <a href="/A068249/b068249.txt">Table of n, a(n) for n = 3..1000</a> %H A068249 Alois P. Heinz, <a href="/A068249/a068249.txt">Formula for A068249</a> %Y A068249 Cf. A068239-A068305, A000332, A002417, A027441, A212194, A212195. %K A068249 nonn %O A068249 3,2 %A A068249 _R. H. Hardin_, Feb 24 2002 %E A068249 Extended beyond a(7) by _Alois P. Heinz_, May 03 2012