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A241352 Number of n X 4 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 one plus the sum of the elements diagonally to its northwest or zero plus the sum of the elements antidiagonally to its northeast, modulo 4.

%I A241352 #8 Jun 19 2025 22:38:02
%S A241352 6,17,51,128,248,624,1323,2715,5798,11469,22610,44855,88994,180577,
%T A241352 367607,733516,1503885,3019433,6043861,12320601,24650945,49784403,
%U A241352 100845525,202178447,409323604,825183533,1660318484,3359379163
%N A241352 Number of n X 4 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 one plus the sum of the elements diagonally to its northwest or zero plus the sum of the elements antidiagonally to its northeast, modulo 4.
%C A241352 Column 4 of A241356.
%H A241352 R. H. Hardin, <a href="/A241352/b241352.txt">Table of n, a(n) for n = 1..210</a>
%e A241352 Some solutions for n=4
%e A241352 ..3..2..3..3....2..3..3..2....2..3..3..3....3..2..3..3....3..2..3..3
%e A241352 ..3..1..2..1....2..1..1..2....2..1..2..3....3..2..2..1....3..1..2..1
%e A241352 ..2..3..3..3....2..0..3..2....3..0..1..1....2..3..3..3....2..3..0..2
%e A241352 ..2..1..2..2....2..0..1..2....2..3..0..2....3..2..2..2....3..0..0..2
%Y A241352 Cf. A241356.
%K A241352 nonn
%O A241352 1,1
%A A241352 _R. H. Hardin_, Apr 20 2014