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 A300179 #4 Feb 27 2018 12:30:31 %S A300179 16,512,16208,513832,16288960,516368256,16369174784,518912313824, %T A300179 16449820393120,521468820137344,16530863182211264,524037923251710208, %U A300179 16612305236616613760,526619683480028961920,16694148528966490951424 %N A300179 Number of nX5 0..1 arrays with every element equal to 0, 1, 2, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero. %C A300179 Column 5 of A300182. %H A300179 R. H. Hardin, <a href="/A300179/b300179.txt">Table of n, a(n) for n = 1..210</a> %F A300179 Empirical: a(n) = 26*a(n-1) +158*a(n-2) +696*a(n-3) +756*a(n-4) +236*a(n-5) -3520*a(n-6) -640*a(n-7) -1792*a(n-8) +4096*a(n-9) %e A300179 Some solutions for n=5 %e A300179 ..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0 %e A300179 ..0..0..0..0..0. .0..0..0..0..0. .0..0..0..1..0. .0..0..0..0..1 %e A300179 ..0..0..1..0..0. .1..0..1..0..1. .0..1..0..1..1. .1..0..1..1..0 %e A300179 ..1..1..1..1..1. .0..1..0..0..0. .0..1..0..1..0. .1..0..1..0..1 %e A300179 ..1..1..1..0..0. .0..0..0..0..1. .0..0..0..1..1. .1..0..1..0..1 %Y A300179 Cf. A300182. %K A300179 nonn %O A300179 1,1 %A A300179 _R. H. Hardin_, Feb 27 2018