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 A146479 #4 Dec 18 2015 18:17:14 %S A146479 0,78,2915,413255,27664684,443065607,3534941139,18915573187, %T A146479 78095787882,268541796601 %N A146479 Number of n X n arrays of squares of integers summing to 12 with every element equal to at least one neighbor. %K A146479 nonn %O A146479 2,2 %A A146479 _R. H. Hardin_ Apr 14 2009