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A240043 Number of nX4 0..3 arrays with no element equal to zero plus the sum of elements to its left or zero plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4.

%I A240043 #6 Jun 02 2025 09:39:01
%S A240043 6,20,72,346,1496,8567,46381,268672,1556758,9438166,56174788,
%T A240043 346760638,2098659043,13032771483,79558734990,494814764391,
%U A240043 3034462087200,18868201942704,116012171614159,720835003158134,4439604572498702
%N A240043 Number of nX4 0..3 arrays with no element equal to zero plus the sum of elements to its left or zero plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4.
%C A240043 Column 4 of A240046
%H A240043 R. H. Hardin, <a href="/A240043/b240043.txt">Table of n, a(n) for n = 1..210</a>
%e A240043 Some solutions for n=3
%e A240043 ..2..3..3..3....3..2..2..2....3..2..2..2....2..3..3..3....2..3..2..2
%e A240043 ..3..1..2..0....2..1..0..0....2..0..0..0....3..1..2..0....1..0..0..3
%e A240043 ..2..1..2..2....3..1..3..0....2..1..0..0....2..1..0..2....2..0..3..0
%K A240043 nonn
%O A240043 1,1
%A A240043 _R. H. Hardin_, Mar 31 2014