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 A302969 #4 Apr 16 2018 11:58:12 %S A302969 32,2048,24602,395493,5602382,83644490,1233435694,18159869483, %T A302969 268409524880,3957450379702,58402548130271,861812274348049, %U A302969 12715310968740330,187629366615561495,2768525577015049111 %N A302969 Number of 6Xn 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 A302969 Row 6 of A302965. %H A302969 R. H. Hardin, <a href="/A302969/b302969.txt">Table of n, a(n) for n = 1..210</a> %e A302969 Some solutions for n=5 %e A302969 ..0..0..0..0..0. .0..0..0..0..1. .0..0..0..0..0. .0..0..0..0..0 %e A302969 ..0..0..1..1..1. .1..1..0..1..0. .1..1..0..1..1. .1..1..0..1..1 %e A302969 ..1..0..1..0..0. .0..1..0..1..1. .1..0..0..1..0. .0..1..1..1..0 %e A302969 ..1..0..1..1..0. .1..1..0..0..0. .0..1..1..0..1. .0..1..0..1..1 %e A302969 ..0..0..1..0..0. .1..0..1..1..1. .0..1..1..0..1. .1..1..0..1..1 %e A302969 ..1..1..0..0..1. .0..1..0..0..1. .0..0..0..1..0. .1..1..0..1..1 %Y A302969 Cf. A302965. %K A302969 nonn %O A302969 1,1 %A A302969 _R. H. Hardin_, Apr 16 2018