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A177301
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Number of permutations of 5 copies of 1..n with all adjacent differences <= 1 in absolute value.
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2
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1, 1, 252, 7002, 284002, 8956752, 276285002, 8039989002, 226901044252, 6232521421502, 167765555015002, 4441865811412752, 116042171156004002, 2998175631045512002, 76751828260736962252, 1949598912568702682502, 49197330547669842130002, 1234523426440511782592752
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OFFSET
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0,3
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COMMENTS
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a(n) = (5n)!/120^n = A014609(n) for n<=2.
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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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