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 A298922 #4 Jan 29 2018 07:58:27 %S A298922 1,32,5,6,12,19,22,48,53,103,169,272,446,863,1346,2395,4154,7334, %T A298922 12706,22695,39500,70143,123441,218719,385766,684533,1208762,2142932, %U A298922 3791443,6719743,11895717,21085505,37340353,66178799,117235756,207768546 %N A298922 Number of nX6 0..1 arrays with every element equal to 1, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero. %C A298922 Column 6 of A298924. %H A298922 R. H. Hardin, <a href="/A298922/b298922.txt">Table of n, a(n) for n = 1..210</a> %e A298922 Some solutions for n=5 %e A298922 ..0..0..1..1..0..1. .0..0..0..0..1..0. .0..0..0..1..1..1. .0..0..0..0..0..0 %e A298922 ..0..0..1..1..0..1. .0..0..0..0..1..0. .0..0..0..1..1..1. .0..0..0..0..0..0 %e A298922 ..0..0..1..1..0..0. .0..0..0..0..1..1. .0..0..0..1..1..1. .1..1..1..1..1..1 %e A298922 ..0..0..1..1..0..1. .0..0..0..0..1..0. .0..0..0..1..1..1. .1..1..1..1..1..1 %e A298922 ..0..0..1..1..0..1. .0..0..0..0..1..0. .0..0..0..1..1..1. .1..1..1..1..1..1 %Y A298922 Cf. A298924. %K A298922 nonn %O A298922 1,2 %A A298922 _R. H. Hardin_, Jan 29 2018