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 A167260 #4 Mar 31 2012 12:35:36 %S A167260 0,0,0,0,1,0,1,0,0,1,0,5,0,5,0,0,0,23,23,0,0,0,11,0,117,0,11,0,1,0,0, %T A167260 501,501,0,0,1,0,25,0,2369,0,2369,0,25,0,0,0,1038,9525,0,0,9525,1038, %U A167260 0,0,0,45,0,39731,0,442791,0,39731,0,45,0,1,0,0,145415,1596459,0,0,1596459 %N A167260 T(n,m) = Number of ways to partition an nXm grid into 4 connected equal-area regions. %H A167260 R. H. Hardin, <a href="/A167260/b167260.txt">Table of n, a(n) for n=1..83</a> %K A167260 nonn,tabl %O A167260 1,12 %A A167260 _R. H. Hardin_ Oct 31 2009