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 A303460 #4 Apr 24 2018 10:25:40 %S A303460 32,2048,90800,4136339,189837638,8727953509,401712282811, %T A303460 18493895768840,851532898379546,39209476319247800,1805462141757826663, %U A303460 83135813098208900937,3828149922234369240279,176274735527226134872745 %N A303460 Number of 6Xn 0..1 arrays with every element equal to 0, 1, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. %C A303460 Row 6 of A303456. %H A303460 R. H. Hardin, <a href="/A303460/b303460.txt">Table of n, a(n) for n = 1..210</a> %e A303460 Some solutions for n=5 %e A303460 ..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0 %e A303460 ..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..1. .0..0..0..0..1 %e A303460 ..0..1..0..1..0. .0..1..0..1..0. .1..0..1..0..0. .0..1..0..1..1 %e A303460 ..0..0..0..1..1. .1..0..0..1..0. .1..1..0..0..0. .0..1..0..1..1 %e A303460 ..0..0..0..1..1. .1..0..1..1..0. .0..1..1..1..1. .1..1..0..0..0 %e A303460 ..1..1..1..0..1. .0..0..0..0..0. .0..1..1..0..1. .0..0..1..0..1 %Y A303460 Cf. A303456. %K A303460 nonn %O A303460 1,1 %A A303460 _R. H. Hardin_, Apr 24 2018