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 A146210 #4 Dec 18 2015 18:17:14 %S A146210 4,12,1938,58808,475414,2193309,7466929,20973758,51518964,114522547, %T A146210 235503899,454805724,833826118,1463054489,2472233877,4042999114, %U A146210 6424367144 %N A146210 Number of n X n arrays of squares of integers summing to 8 with every element equal to at least one neighbor. %K A146210 nonn %O A146210 2,1 %A A146210 _R. H. Hardin_ Apr 14 2009