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A264194
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Number of (n+1)X(6+1) arrays of permutations of 0..n*7+6 with each element having index change +-(.,.) 0,0 0,2 or 2,1.
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1
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225, 29040, 3748096, 324210304, 28044191296, 2585148634024, 238302234835681, 21610191419098239, 1959697832846942241, 178525809871370371359, 16263458710839902875041, 1481085572969040160283784
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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=2
..0..1..2..5..4.20..6....0.16..2.18..6.20..4....2..1.17..5.19.20..6
..7.10.11..8..9.12.13....9..8..7.10.13.12.11....9..8..7.12.13.10.11
.14.17.16.15..3.19.18...14.17..1.15..3.19..5...14..0.16.15..3..4.18
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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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