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A241352
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 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
1
6, 17, 51, 128, 248, 624, 1323, 2715, 5798, 11469, 22610, 44855, 88994, 180577, 367607, 733516, 1503885, 3019433, 6043861, 12320601, 24650945, 49784403, 100845525, 202178447, 409323604, 825183533, 1660318484, 3359379163
OFFSET
1,1
COMMENTS
Column 4 of A241356
LINKS
EXAMPLE
Some solutions for n=4
..3..2..3..3....2..3..3..2....2..3..3..3....3..2..3..3....3..2..3..3
..3..1..2..1....2..1..1..2....2..1..2..3....3..2..2..1....3..1..2..1
..2..3..3..3....2..0..3..2....3..0..1..1....2..3..3..3....2..3..0..2
..2..1..2..2....2..0..1..2....2..3..0..2....3..2..2..2....3..0..0..2
CROSSREFS
Sequence in context: A373040 A199113 A297297 * A239796 A231223 A231437
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 20 2014
STATUS
approved