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A240323
Number of nX3 0..3 arrays with no element equal to zero plus the sum of elements to its left or zero plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4
1
4, 17, 116, 455, 1677, 8091, 28448, 117304, 513841, 1871262, 7963314, 32859835, 125032724, 531287384, 2129046798, 8380565700, 35092450158, 139319279619, 559869375850, 2308650810237, 9177286253390, 37241010454269, 151821739788451
OFFSET
1,1
COMMENTS
Column 3 of A240327
LINKS
EXAMPLE
Some solutions for n=4
..3..2..3....3..2..2....3..2..2....2..3..3....3..2..3....2..3..2....2..3..3
..2..1..1....2..1..1....2..3..0....3..1..2....2..1..1....3..1..3....3..0..1
..3..0..2....3..0..0....3..2..0....3..1..3....3..2..2....3..1..2....2..1..1
..3..2..0....2..1..2....3..2..0....2..3..2....2..3..0....3..2..2....2..1..0
CROSSREFS
Sequence in context: A330535 A004140 A271612 * A335945 A360879 A206353
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 03 2014
STATUS
approved