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 A146299 #4 Dec 18 2015 18:17:14 %S A146299 8,18,107798,6685156,62777794,313834602,1129602808,3313914698, %T A146299 8438118356,19340801916 %N A146299 Number of n X n arrays of squares of integers with every (n-2)X(n-2) subblock summing to 8 and every element equal to at least one neighbor. %K A146299 nonn %O A146299 4,1 %A A146299 _R. H. Hardin_ Apr 14 2009