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A240762
Number of 3Xn 0..3 arrays with no element equal to one plus the sum of elements to its left or zero plus the sum of the elements above it or zero 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
4, 12, 19, 142, 553, 4112, 18373, 131958, 625820, 4472258, 21760942, 154039075, 763999159, 5342021291, 26913960199, 185826785482, 949177894331, 6473768540990, 33478372193270, 225722723781992, 1180496482754391
OFFSET
1,1
COMMENTS
Row 3 of A240760
LINKS
EXAMPLE
Some solutions for n=4
..3..3..1..3....3..1..3..3....3..3..1..1....2..1..2..3....2..2..2..1
..2..2..0..2....2..2..2..2....2..0..2..2....3..3..0..1....3..1..3..3
..2..0..0..2....2..0..0..2....2..1..1..2....2..2..3..3....2..2..0..2
CROSSREFS
Sequence in context: A239727 A341888 A009557 * A319259 A050021 A239662
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 12 2014
STATUS
approved