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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.

A184559 Number of (n+1)X5 0..2 arrays with no 2X2 subblock summing to less than 4.

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%I A184559 #7 Jun 02 2025 03:48:43
%S A184559 14180,1486258,134840527,12900566348,1214657950233,115000791536877,
%T A184559 10868641315040295,1027803541995894568,97176104485641628222,
%U A184559 9188347231740579769607,868772129294612664475944
%N A184559 Number of (n+1)X5 0..2 arrays with no 2X2 subblock summing to less than 4.
%C A184559 Column 4 of A184564
%H A184559 R. H. Hardin, <a href="/A184559/b184559.txt">Table of n, a(n) for n = 1..200</a>
%e A184559 Some solutions for 3X5
%e A184559 ..0..1..1..1..2....0..0..2..2..0....0..1..0..1..2....0..1..0..2..2
%e A184559 ..2..1..1..2..1....2..2..1..2..0....1..2..2..1..2....1..2..2..1..2
%e A184559 ..1..0..2..1..0....1..2..1..2..1....0..2..2..0..1....2..0..1..1..2
%K A184559 nonn
%O A184559 1,1
%A A184559 _R. H. Hardin_ Jan 17 2011

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