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A153761
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Number of degree-n permutations of order exactly 11.
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3
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3628800, 43545600, 283046400, 1320883200, 4953312000, 15850598400, 44910028800, 115482931200, 274271961600, 609493248000, 1279935820800, 4644633666390681600, 106826520356358566400, 1281918194457262387200, 10682651561168805120000
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OFFSET
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1,11
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LINKS
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FORMULA
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MAPLE
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a:= proc(n) option remember;
`if`(n<11, 0, a(n-1)+(1+a(n-11))*(n-1)!/(n-11)!)
end:
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MATHEMATICA
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Rest[CoefficientList[Series[-Exp[x] + Exp[x + 1/11*x^11], {x, 0, 25}], x]*Range[0, 25]!] (* G. C. Greubel, Aug 27 2016 *)
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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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