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 A302283 #7 Apr 05 2018 04:08:45 %S A302283 0,162,942,941,3854,15862,72083,229708,713848,2948380,12041624, %T A302283 42878033,150037123,568430873,2213341390,8198208076,29843299672, %U A302283 111484320586,422946390276,1581927104188,5856632633328,21841388005545,82061911191197 %N A302283 Number of 6 X n 0..1 arrays with every element equal to 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. %C A302283 Row 6 of A302278. %H A302283 R. H. Hardin, <a href="/A302283/b302283.txt">Table of n, a(n) for n = 1..210</a> %e A302283 Some solutions for n=5: %e A302283 0 1 0 1 0 0 1 1 1 0 0 1 1 1 0 0 0 1 1 1 %e A302283 0 0 1 0 0 1 0 0 0 1 1 0 0 0 1 1 0 1 0 1 %e A302283 1 1 0 1 1 1 0 1 0 1 0 1 0 1 0 1 1 0 0 1 %e A302283 0 0 0 0 0 0 1 1 1 1 0 1 0 1 0 1 0 0 1 1 %e A302283 1 1 0 1 1 1 1 0 1 0 0 0 1 0 1 1 0 1 0 1 %e A302283 1 0 0 0 1 1 0 1 0 1 1 1 0 1 0 1 1 1 0 0 %Y A302283 Cf. A302278. %K A302283 nonn %O A302283 1,2 %A A302283 _R. H. Hardin_, Apr 04 2018