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A240391
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 two plus the sum of the elements diagonally to its northwest, modulo 4
1
1, 9, 62, 954, 8656, 142016, 1314136, 21792634, 202647943, 3370994234, 31395506778, 522714912826, 4870472639797, 81112346208261, 755881774461935, 12589433049740763, 117325295715902531, 1954137844293677962
OFFSET
1,2
COMMENTS
Column 4 of A240394
LINKS
EXAMPLE
Some solutions for n=4
..3..0..0..0....3..0..0..0....3..0..0..0....3..0..0..0....3..0..0..0
..1..0..3..3....3..2..3..3....1..0..0..0....3..2..0..0....1..2..0..0
..3..2..3..3....1..2..2..3....3..2..0..3....1..0..0..0....3..2..2..0
..1..2..0..1....3..2..0..2....3..2..0..2....3..2..0..0....3..0..0..2
CROSSREFS
Sequence in context: A081574 A084151 A346396 * A229701 A341627 A159235
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 04 2014
STATUS
approved