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A265978
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Number of n X 4 integer arrays with each element equal to the number of horizontal, diagonal and antidiagonal neighbors less than itself.
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1
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11, 583, 11573, 282056, 8935989, 250833288, 7041080382, 208041110790, 6005134588534, 173028589656262, 5028214246050687, 145626831371486785, 4214456145515857209, 122142144512607793870, 3538248976950632976988, 102477470998378691193804, 2968734018953007326351295
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=3:
..1..3..3..0....1..1..0..1....1..4..2..1....1..1..1..1....0..3..3..0
..1..0..0..1....3..0..6..0....0..0..0..3....2..0..0..2....0..0..0..0
..1..4..1..1....2..0..4..0....0..0..0..0....1..2..4..1....2..0..4..0
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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