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A025557 a(n) = (n+1)!/LCM{1,3,6,...,C(n+1,2)}. 0
2, 2, 4, 4, 24, 24, 96, 288, 2880, 2880, 34560, 34560, 483840, 7257600, 58060800, 58060800, 1045094400, 1045094400, 20901888000, 438939648000, 9656672256000, 9656672256000, 231760134144000, 1158800670720000, 30128817438720000, 271159356948480000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..26.

Index entries for sequences related to lcm's

CROSSREFS

Sequence in context: A110428 A076928 A286737 * A285909 A322253 A059372

Adjacent sequences:  A025554 A025555 A025556 * A025558 A025559 A025560

KEYWORD

nonn

AUTHOR

Clark Kimberling

EXTENSIONS

More terms from Sean A. Irvine, Sep 06 2019

STATUS

approved

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Last modified October 27 21:44 EDT 2021. Contains 348290 sequences. (Running on oeis4.)