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A221480
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Number of nX5 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, without consecutive moves in the same direction
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0
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0, 292, 11784, 802711, 48514602, 2942599561, 178388225956, 10813887700409, 655520056354214, 39736291487120087, 2408728477458995298, 146011851408477524221
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OFFSET
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1,2
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=3
..0..1..1..2..0....0..2..1..0..1....1..2..1..0..0....0..2..2..0..1
..1..2..2..1..0....1..3..1..1..1....0..3..1..3..2....1..1..1..2..1
..0..1..1..2..1....0..1..1..2..0....0..0..1..1..0....0..3..0..1..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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