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Search: id:A081049
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A081049 Generalized Stirling numbers of the first kind. +0
2
1, 0, 5, -5, 74, -154, 2484, -8028, 149904, -663696, 14257440, -80627040, 1965444480, -13575738240, 370643938560, -3031488633600, 91657072281600, -867718162483200, 28779361764249600, -309920046408806400, 11185850044938240000, -135153868608460800000 (list; graph; listen)
OFFSET

0,3

FORMULA

a(n) = n!*(1 + Sum {k=1..n, (-1)^n*1/k} )

CROSSREFS

Cf. A000774, A081050, A008275.

Adjacent sequences: A081046 A081047 A081048 this_sequence A081050 A081051 A081052

Sequence in context: A129358 A151492 A081050 this_sequence A048607 A094463 A055928

KEYWORD

easy,sign

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Mar 05 2003

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Last modified January 8 02:43 EST 2009. Contains 152824 sequences.


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