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Search: id:A050213
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| A050213 |
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Triangle of number of permutations of {1, 2, ..., n} having exactly k cycles, each of which is of length >=r for r=5. |
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3
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| 24, 120, 720, 5040, 40320, 362880, 72576, 3628800, 1330560, 39916800, 20338560, 479001600, 303937920, 6227020800, 4643084160, 87178291200, 73721007360, 1743565824, 1307674368000, 1224694598400, 69742632960, 20922789888000
(list; table; graph; listen)
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OFFSET
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1,1
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COMMENT
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Generalizes Stirling numbers of the first kind
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REFERENCES
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L. Comtet, Advanced Combinatorics, Reidel, 1974, p. 257.
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LINKS
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Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.
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CROSSREFS
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Cf. A008275, A008306, A050211, A050212.
Sequence in context: A099317 A052760 A052754 this_sequence A124657 A052581 A052605
Adjacent sequences: A050210 A050211 A050212 this_sequence A050214 A050215 A050216
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KEYWORD
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nonn,tabl
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AUTHOR
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Eric Weisstein (eric(AT)weisstein.com)
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