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 A231745 #6 Jul 23 2025 06:39:31 %S A231745 422,26918,9945132,2426463539,598711367728,155985773478611, %T A231745 40539474933206048,10471241201508754882,2708333085420702066371, %U A231745 701131301655294979491764,181453765111432778651835050 %N A231745 Number of nX6 0..3 arrays with no element less than a strict majority of its horizontal and vertical neighbors. %C A231745 Column 6 of A231746 %H A231745 R. H. Hardin, <a href="/A231745/b231745.txt">Table of n, a(n) for n = 1..61</a> %e A231745 Some solutions for n=2 %e A231745 ..0..0..0..0..0..2....1..3..0..0..3..1....3..0..0..0..0..0....0..0..1..1..3..0 %e A231745 ..2..2..2..1..0..0....1..3..0..0..1..1....0..0..1..0..0..1....3..0..0..0..0..0 %K A231745 nonn %O A231745 1,1 %A A231745 _R. H. Hardin_, Nov 13 2013