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A183599 1/6 the number of (n+1)X6 0..2 arrays with every 2X2 subblock containing all three values.

%I A183599 #7 Jul 22 2025 09:07:52
%S A183599 2376,78729,2366412,72592860,2220901926,68026656422,2083981368760,
%T A183599 63854542807704,1956721189681174,59964037003007332,
%U A183599 1837667093496854518,56318507579345070520,1725998009645259021660,52897152711871651813326
%N A183599 1/6 the number of (n+1)X6 0..2 arrays with every 2X2 subblock containing all three values.
%C A183599 Column 5 of A183603
%H A183599 R. H. Hardin, <a href="/A183599/b183599.txt">Table of n, a(n) for n = 1..200</a>
%e A183599 Some solutions with a(1,1)=0 for 3X6
%e A183599 ..0..1..2..1..0..1....0..1..0..1..1..1....0..1..0..2..1..2....0..1..0..0..1..0
%e A183599 ..2..2..0..0..2..2....2..2..0..2..0..2....1..2..1..0..1..0....2..0..2..1..2..2
%e A183599 ..0..1..1..2..1..0....1..0..1..1..1..1....1..0..2..2..1..2....1..1..1..0..0..1
%K A183599 nonn
%O A183599 1,1
%A A183599 _R. H. Hardin_ Jan 05 2011