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A177279
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Number of permutations of 1..n with all adjacent differences <= 7 in absolute value.
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0
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1, 1, 2, 6, 24, 120, 720, 5040, 40320, 282240, 1764000, 10118880, 54888240, 289147152, 1510241892, 7937250452, 42396685874, 228146155304, 1228995185960, 6598619633952, 35220099648960
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OFFSET
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0,3
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COMMENTS
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a(n) = n! for n <= 8.
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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