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A053509 binomial(n-1,4)*n^(n-5). 6
0, 0, 0, 0, 1, 30, 735, 17920, 459270, 12600000, 372027810, 11824496640, 403786706895, 14772648450560, 577227041015625, 24013333950627840, 1060372471758165020, 49558656380297379840, 2444960458495625410260, 127008768000000000000000 (list; graph; refs; listen; history; internal format)
OFFSET

1,6

REFERENCES

R. P. Stanley, Enumerative Combinatorics, Cambridge, Vol. 2, 1999; see Prop. 5.3.2.

FORMULA

E.g.f.: -1/5!*LambertW(-x)^5. - Vladeta Jovovic (vladeta(AT)eunet.rs), Apr 07 2001

CROSSREFS

Cf. A000169, A053506-A053509.

Sequence in context: A122186 A166840 A166828 * A181201 A089507 A045689

Adjacent sequences:  A053506 A053507 A053508 * A053510 A053511 A053512

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Jan 15 2000

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Last modified February 17 21:13 EST 2012. Contains 206085 sequences.