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Search: id:A053503
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| A053503 |
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Number of degree-n permutations of order dividing 16. |
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+0
2
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| 1, 1, 2, 4, 16, 56, 256, 1072, 11264, 78976, 672256, 4653056, 49810432, 433429504, 4448608256, 39221579776, 1914926104576, 29475151020032, 501759779405824, 6238907914387456, 120652091860975616, 1751735807564578816, 29062253310781161472
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OFFSET
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0,3
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REFERENCES
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L. Moser and M. Wyman, On solutions of x^d = 1 in symmetric groups, Canad. J. Math., 7 (1955), 159-168.
R. P. Stanley, Enumerative Combinatorics, Cambridge, Vol. 2, 1999; see Example 5.2.10.
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FORMULA
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E.g.f.: exp(x+1/2*x^2+1/4*x^4+1/8*x^8+1/16*x^16).
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CROSSREFS
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Cf. A000085, A001470, A001472, A053495-A053505, A005388.
Adjacent sequences: A053500 A053501 A053502 this_sequence A053504 A053505 A053506
Sequence in context: A001472 A053498 A005388 this_sequence A068789 A009624 A009161
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KEYWORD
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nonn
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AUTHOR
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njas, Jan 15 2000
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