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 A146346 #4 Dec 18 2015 18:17:14 %S A146346 8,104,36706,57182858,1769141740 %N A146346 Number of n X n arrays of squares of integers with every (n-2)X(n-2) subblock summing to 10 and every element equal to at least one neighbor. %K A146346 nonn %O A146346 4,1 %A A146346 _R. H. Hardin_ Apr 14 2009