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 A302968 #4 Apr 16 2018 11:57:30 %S A302968 16,512,4527,49521,493132,5122000,52646395,540681182,5569126817, %T A302968 57254087318,589032216747,6059464681577,62328319647566, %U A302968 641176141999092,6595539320186789,67846561446192118,697921529912134766 %N A302968 Number of 5Xn 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 A302968 Row 5 of A302965. %H A302968 R. H. Hardin, <a href="/A302968/b302968.txt">Table of n, a(n) for n = 1..210</a> %e A302968 Some solutions for n=5 %e A302968 ..0..0..0..1..0. .0..0..0..1..0. .0..0..0..0..1. .0..0..0..0..1 %e A302968 ..1..1..1..1..1. .1..1..0..1..1. .0..1..1..1..0. .1..1..1..0..0 %e A302968 ..0..0..1..0..0. .1..1..0..1..0. .1..0..0..1..1. .0..0..1..0..0 %e A302968 ..0..1..1..0..1. .1..1..0..1..1. .1..0..1..0..0. .0..1..1..0..1 %e A302968 ..1..0..0..0..0. .0..1..0..0..0. .0..1..1..1..0. .1..1..0..1..1 %Y A302968 Cf. A302965. %K A302968 nonn %O A302968 1,1 %A A302968 _R. H. Hardin_, Apr 16 2018