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 A239272 #6 Mar 19 2014 14:10:25 %S A239272 1,1,683,54685,11716601,1894621633,342050825969,59567383578529, %T A239272 10529540995776143,1851260737169108297,326207195516663381931, %U A239272 57432330223655165724245,10115159197829895564709879,1781269009331896694492341991,313697981363828055088298550945 %N A239272 Number of domicule tilings of a 10 X n grid. %C A239272 A domicule is either a domino or it is formed by the union of two neighboring unit squares connected via their corners. In a tiling the connections of two domicules are allowed to cross each other. %H A239272 Alois P. Heinz, <a href="/A239272/b239272.txt">Table of n, a(n) for n = 0..200</a> %Y A239272 Column k=10 of A239264. %K A239272 nonn %O A239272 0,3 %A A239272 _Alois P. Heinz_, Mar 13 2014