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 A285748 #6 Apr 05 2020 23:19:29 %S A285748 12,540,31276,1729212,99685406,5826888288,345505561776,20683003285236, %T A285748 1247496214559062,75696417871360268,4615888774091221702, %U A285748 282636062954942366016,17366871309998173841404,1070340278818744008980972 %N A285748 Number of n X 6 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1. %C A285748 Column 6 of A285750. %H A285748 R. H. Hardin, <a href="/A285748/b285748.txt">Table of n, a(n) for n = 1..47</a> %e A285748 Some solutions for n=3 %e A285748 ..0..1..1..1..1..1. .1..1..0..1..1..0. .0..1..0..0..0..1. .1..0..0..1..0..0 %e A285748 ..0..1..0..1..0..0. .0..1..0..0..0..1. .1..0..0..1..0..0. .1..0..1..0..0..0 %e A285748 ..0..0..0..1..0..0. .0..1..1..0..0..1. .1..1..0..0..1..1. .1..0..1..1..0..0 %Y A285748 Cf. A285750. %K A285748 nonn %O A285748 1,1 %A A285748 _R. H. Hardin_, Apr 25 2017