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A221361
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T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal, vertical or antidiagonal neighbor, with no 2-loops and with no occupancy greater than 2
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5
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0, 0, 0, 0, 5, 0, 0, 39, 39, 0, 0, 292, 791, 292, 0, 0, 2088, 18738, 18738, 2088, 0, 0, 14799, 410571, 1388784, 410571, 14799, 0, 0, 104532, 9021576, 93433746, 93433746, 9021576, 104532, 0, 0, 737498, 197291655, 6308646549, 18970881500, 6308646549
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OFFSET
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1,5
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COMMENTS
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Table starts
.0.......0..........0............0.............0.............0...............0
.0.......5.........39..........292..........2088.........14799..........104532
.0......39........791........18738........410571.......9021576.......197291655
.0.....292......18738......1388784......93433746....6308646549....423812250312
.0....2088.....410571.....93433746...18970881500.3872954657964.786996595093490
.0...14799....9021576...6308646549.3872954657964
.0..104532..197291655.423812250312
.0..737498.4313255090
.0.5200799
.0
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LINKS
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EXAMPLE
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Some solutions for n=3 k=4
..0..0..2..1....1..2..0..1....1..2..1..1....0..1..1..1....1..1..2..2
..2..1..0..2....2..0..1..1....2..0..0..2....2..0..2..2....1..1..1..1
..0..1..2..1....2..1..0..1....1..2..0..0....2..0..0..1....0..2..0..0
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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