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A189434
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Number of nX8 array permutations with each element not moving, or moving one space N, SW or SE
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1
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1, 34, 1165, 42205, 1940868, 79826592, 3467525301, 150293731826, 6540976400913, 285499775348185, 12468705796935816, 545183904690537217, 23847514960230618480, 1043490861604911009586, 45668994694128002511925
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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 3X8
..8..9.10.11..4.13.14..7....0..1..2..3..4..5..6..7....0..1..2..3..4..5..6..7
..1..0..3..2..5.21.22..6...16.17.18.19.12.13.22.23....8..9.18.19.12.13.14.15
.16.17.18.19.20.12.15.23....9..8.11.10.20.21.15.14...16.17.11.10.20.21.22.23
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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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