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A081409 a(n)=C[n!,LCM(n)], where LCM[n]=LCM[1,...,n]. 0
1, 1, 1, 2704156, 96614908840363322603893139521372656, 26390396795222677975727207509769281627761276862587589456302534175336254818515595864127888 (list; graph; refs; listen; history; internal format)
OFFSET

0,4

FORMULA

a(n)=C[A000142(n), A003418(n)]

CROSSREFS

Cf. A000142, A003418.

Sequence in context: A199998 A046508 A178291 * A104848 A051384 A015336

Adjacent sequences:  A081406 A081407 A081408 * A081410 A081411 A081412

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Apr 01 2003

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Last modified February 17 07:41 EST 2012. Contains 205998 sequences.