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A240188 Number of nX3 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of elements above it or three plus the sum of the elements diagonally to its northwest, modulo 4.

%I A240188 #6 Jun 02 2025 09:41:26
%S A240188 1,8,37,138,680,2413,10017,43956,159668,681760,2806434,10675575,
%T A240188 45462460,181764269,715963401,3000804172,11895218236,47847647772,
%U A240188 197325296591,783759057127,3182984036915,12972975259195,51820141213238
%N A240188 Number of nX3 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of elements above it or three plus the sum of the elements diagonally to its northwest, modulo 4.
%C A240188 Column 3 of A240192
%H A240188 R. H. Hardin, <a href="/A240188/b240188.txt">Table of n, a(n) for n = 1..210</a>
%e A240188 Some solutions for n=4
%e A240188 ..2..0..0....2..0..0....2..0..0....2..0..0....2..0..0....2..0..0....2..0..0
%e A240188 ..2..0..0....1..0..2....1..3..2....1..2..2....2..0..0....2..0..0....2..3..0
%e A240188 ..2..0..0....2..3..0....2..3..2....1..2..1....2..3..3....2..0..3....2..3..3
%e A240188 ..1..2..0....1..2..1....1..2..0....2..3..3....1..2..1....1..2..2....1..0..3
%K A240188 nonn
%O A240188 1,2
%A A240188 _R. H. Hardin_, Apr 02 2014