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A189252
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Number of nX7 array permutations with each element making zero or one king moves
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1
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21, 456320, 1070959431, 5025023852501, 19568579061640704, 81032653651506521333, 330453235652954061843137, 1355117057188899341581651072, 5550437831744113835993347187363
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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 3X7
..0..1..2..9..3..4..5....0..1..2..9..3..4..5....0..1..2..9..3..4..5
.15.16.10.11.18.13..6...14..8.15.11.19.12..6...14.16..8.18.11..6.19
.14..7..8.17.12.19.20....7.16.17.10.18.13.20....7.15.10.17.12.20.13
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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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