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 A302152 #6 Aug 19 2022 15:35:41 %S A302152 8,1,10,17,56,255,1038,4771,21866,102060,476499,2227609,10440370, %T A302152 48996354,230159202,1081764728,5086004704,23916740145,112479869517, %U A302152 529026120838,2488273643127,11703911410284,55051772837784 %N A302152 Number of 4 X n 0..1 arrays with every element equal to 0, 2, 3 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero. %C A302152 Row 4 of A302150. %H A302152 R. H. Hardin, <a href="/A302152/b302152.txt">Table of n, a(n) for n = 1..210</a> %F A302152 Empirical recurrence of order 85 (see link above). %e A302152 Some solutions for n=5 %e A302152 ..0..1..1..1..1. .0..1..1..1..0. .0..1..0..1..1. .0..1..1..0..1 %e A302152 ..1..1..1..1..0. .1..1..1..1..1. .0..1..1..1..0. .1..1..1..0..0 %e A302152 ..0..1..0..1..1. .1..1..0..1..1. .1..1..0..1..0. .1..1..0..0..0 %e A302152 ..1..1..1..1..0. .1..1..1..1..0. .0..1..0..1..0. .0..1..0..0..1 %Y A302152 Cf. A302150. %K A302152 nonn %O A302152 1,1 %A A302152 _R. H. Hardin_, Apr 02 2018