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A239997
Number of nX4 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4
1
5, 42, 526, 6527, 86360, 1225281, 18392485, 290513038, 4767970186, 80410934960, 1381071762609, 24002339457710, 420292066661594, 7394152265405038, 130463578696387397, 2306049013760669647, 40806118077181581732
OFFSET
1,1
COMMENTS
Column 4 of A240000
LINKS
EXAMPLE
Some solutions for n=4
..0..3..3..0....0..0..3..3....0..3..3..0....0..0..3..3....0..0..0..3
..0..2..2..3....3..3..2..2....0..0..2..1....3..3..2..2....3..3..0..0
..0..2..0..0....3..2..1..0....3..3..0..1....0..2..2..2....3..2..3..2
..3..3..2..0....3..1..3..2....3..3..1..3....3..2..3..3....2..1..3..1
CROSSREFS
Sequence in context: A052654 A108398 A370907 * A102244 A323313 A363435
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 30 2014
STATUS
approved