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A240375
Number of n X 6 0..3 arrays with no element equal to one 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.
0
15, 353, 7233, 271764, 6436979, 169838571, 5145071133, 121626491919, 3384817934297, 91027175836503, 2222522848709145, 62148514553083420, 1602155697723521517, 41356217735570589779, 1131174318003611087054
OFFSET
1,1
COMMENTS
Column 6 of A240376.
EXAMPLE
Some solutions for n=3:
..3..2..3..2..2..2....3..3..2..3..3..2....2..2..3..2..3..3....2..2..3..2..3..2
..3..2..3..2..0..1....3..1..2..1..1..2....2..0..1..2..1..1....2..0..1..2..1..2
..2..2..0..3..2..3....2..2..3..2..0..3....2..1..3..2..0..0....3..1..3..2..3..0
CROSSREFS
Cf. A240376.
Sequence in context: A012787 A216449 A030049 * A202809 A184132 A240197
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 04 2014
STATUS
approved