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A240409 Number of nX4 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 zero plus the sum of the elements diagonally to its northwest, modulo 4.

%I A240409 #6 Jun 02 2025 09:55:34
%S A240409 6,80,846,11670,148536,2051450,27295809,377924479,5090700587,
%T A240409 70407569019,954551839061,13174232753505,179288052424091,
%U A240409 2469879998025684,33692295233425277,463482286724987999,6332258123206034509
%N A240409 Number of nX4 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 zero plus the sum of the elements diagonally to its northwest, modulo 4.
%C A240409 Column 4 of A240412
%H A240409 R. H. Hardin, <a href="/A240409/b240409.txt">Table of n, a(n) for n = 1..210</a>
%e A240409 Some solutions for n=4
%e A240409 ..3..2..2..2....3..2..3..2....2..3..2..2....3..2..3..3....3..2..3..2
%e A240409 ..1..2..1..1....3..0..1..1....2..3..2..1....3..0..1..1....3..2..3..2
%e A240409 ..3..2..2..2....1..2..0..1....3..0..2..2....1..2..2..0....1..0..0..0
%e A240409 ..3..0..0..0....1..0..0..0....1..0..0..0....2..3..0..2....3..0..2..0
%K A240409 nonn
%O A240409 1,1
%A A240409 _R. H. Hardin_, Apr 04 2014