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Search: id:A063039
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| A063039 |
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LCM of unsigned Stirling numbers of the first kind, s(n,k) for 1 <= k <= n; s(n,k) = number of permutations of {1,2,..,n} with k cycles. |
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1
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| 1, 1, 6, 66, 4200, 4192200, 5115600, 19083776176080, 10086416728304192640, 126556188275836361347200, 451535899566923284351392000, 1253032399528279799996000622278320876800
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OFFSET
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1,3
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EXAMPLE
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a(4) = LCM(s(4,1),s(4,2),s(4,3),s(4,4)) = LCM(6,11,6,1) = 66.
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CROSSREFS
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Sequence in context: A126459 A054969 A068966 this_sequence A082781 A099147 A073326
Adjacent sequences: A063036 A063037 A063038 this_sequence A063040 A063041 A063042
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KEYWORD
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nonn
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AUTHOR
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Leroy Quet (qq-quet(AT)mindspring.com), Aug 03 2001
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