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A240287 Number of 4Xn 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest, modulo 4.

%I A240287 #6 Jun 02 2025 09:46:55
%S A240287 4,38,262,3457,28654,443168,3980245,64782938,596789376,9869794598,
%T A240287 91652276224,1523203607042,14179800809674,236017741338558,
%U A240287 2198821491143543,36615754869208829,341205510217305667
%N A240287 Number of 4Xn 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest, modulo 4.
%C A240287 Row 4 of A240284
%H A240287 R. H. Hardin, <a href="/A240287/b240287.txt">Table of n, a(n) for n = 1..210</a>
%e A240287 Some solutions for n=4
%e A240287 ..3..3..1..3....3..1..3..3....3..1..3..3....3..1..3..1....3..1..3..1
%e A240287 ..2..2..0..3....2..0..2..0....3..2..3..0....2..0..0..0....3..1..2..0
%e A240287 ..2..0..2..2....2..0..0..2....2..2..2..2....2..0..2..0....3..1..2..1
%e A240287 ..2..1..3..0....2..1..1..0....3..1..0..0....3..1..0..0....2..2..2..1
%K A240287 nonn
%O A240287 1,1
%A A240287 _R. H. Hardin_, Apr 03 2014