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 A302153 #4 Apr 02 2018 14:31:16 %S A302153 16,1,28,65,289,2005,12212,83092,578398,4130639,29972866,219079327, %T A302153 1604975900,11775693817,86495138703,635792001674,4675721910068, %U A302153 34396180463177,253073744882567,1862205409753577,13703542207469190 %N A302153 Number of 5Xn 0..1 arrays with every element equal to 0, 2, 3 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero. %C A302153 Row 5 of A302150. %H A302153 R. H. Hardin, <a href="/A302153/b302153.txt">Table of n, a(n) for n = 1..210</a> %e A302153 Some solutions for n=5 %e A302153 ..0..1..1..1..0. .0..1..1..1..0. .0..1..1..1..1. .0..1..1..1..0 %e A302153 ..1..1..1..1..1. .1..1..1..1..0. .1..1..1..1..1. .1..1..1..1..1 %e A302153 ..1..1..1..1..0. .0..1..1..1..1. .1..1..0..1..0. .0..1..1..1..0 %e A302153 ..1..1..1..1..1. .1..1..1..1..0. .1..1..1..1..1. .0..1..1..1..1 %e A302153 ..0..1..1..1..0. .1..1..0..1..0. .1..1..1..1..0. .0..1..1..1..0 %Y A302153 Cf. A302150. %K A302153 nonn %O A302153 1,1 %A A302153 _R. H. Hardin_, Apr 02 2018