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 A293098 #6 Apr 05 2020 23:47:46 %S A293098 1,596,29952,1676740,95603353,5589631828,331401441383,19865025530414, %T A293098 1200437139032383,72998386107582912,4461213464047265536, %U A293098 273752317705189739006,16854982420467382438565,1040728596601470442374962 %N A293098 Number of n X 6 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 two less than the number of 0's adjacent to some 1. %C A293098 Column 6 of A293100. %H A293098 R. H. Hardin, <a href="/A293098/b293098.txt">Table of n, a(n) for n = 1..47</a> %e A293098 Some solutions for n=3 %e A293098 ..0..0..0..1..0..0. .0..0..0..0..1..0. .1..0..0..0..1..1. .0..0..0..1..0..0 %e A293098 ..0..0..0..1..1..1. .1..0..1..0..0..0. .1..1..0..0..1..1. .0..1..1..1..1..1 %e A293098 ..0..0..0..0..1..0. .0..1..1..1..1..0. .0..0..0..1..1..0. .0..0..0..1..1..1 %Y A293098 Cf. A293100. %K A293098 nonn %O A293098 1,2 %A A293098 _R. H. Hardin_, Sep 30 2017