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 A302964 #4 Apr 16 2018 11:54:44 %S A302964 64,5135,100161,2257439,52646395,1233435694,28906043997,677939939546, %T A302964 15913688413086,373691293530910,8777023711297082,206177629016156813, %U A302964 4843679190297598859,113798041132055558867,2673689164053615749675 %N A302964 Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. %C A302964 Column 7 of A302965. %H A302964 R. H. Hardin, <a href="/A302964/b302964.txt">Table of n, a(n) for n = 1..210</a> %e A302964 Some solutions for n=5 %e A302964 ..0..1..0..0..1..0..1. .0..1..0..1..1..0..1. .0..1..0..0..1..0..0 %e A302964 ..0..0..0..1..1..0..1. .0..0..0..1..1..0..1. .0..0..0..1..0..0..1 %e A302964 ..0..0..0..1..1..0..1. .0..1..0..0..1..0..0. .0..0..0..1..0..1..1 %e A302964 ..0..1..0..0..1..0..1. .0..0..0..1..1..0..1. .0..0..0..1..0..1..0 %e A302964 ..0..0..1..1..1..0..1. .0..1..0..0..1..0..1. .0..1..0..1..0..1..0 %Y A302964 Cf. A302965. %K A302964 nonn %O A302964 1,1 %A A302964 _R. H. Hardin_, Apr 16 2018