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 A302425 #4 Apr 07 2018 17:20:28 %S A302425 13,65,88,235,1359,4231,12527,49454,179252,587281,2082252,7515919, %T A302425 25867500,90085908,319677011,1117899288,3899010020,13715991402, %U A302425 48120168332,168313465520,590354141418,2071069227598,7254935551371 %N A302425 Number of nX6 0..1 arrays with every element equal to 0, 1, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. %C A302425 Column 6 of A302427. %H A302425 R. H. Hardin, <a href="/A302425/b302425.txt">Table of n, a(n) for n = 1..210</a> %e A302425 Some solutions for n=5 %e A302425 ..0..0..1..0..1..0. .0..1..1..0..0..1. .0..1..0..1..1..0. .0..1..0..0..0..1 %e A302425 ..1..1..1..0..1..0. .1..0..1..0..1..0. .0..1..1..0..1..0. .1..1..0..1..1..1 %e A302425 ..1..0..1..0..1..0. .1..0..1..0..1..0. .1..0..1..0..1..0. .0..1..0..1..0..1 %e A302425 ..0..0..1..0..1..0. .1..0..0..1..1..0. .1..0..1..0..1..0. .0..1..0..1..0..0 %e A302425 ..1..0..1..1..0..0. .1..0..1..0..1..0. .1..0..1..1..0..0. .0..0..1..1..0..1 %Y A302425 Cf. A302427. %K A302425 nonn %O A302425 1,1 %A A302425 _R. H. Hardin_, Apr 07 2018