A025557 a(n) = (n+1)!/LCM{1,3,6,...,C(n+1,2)}.

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

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