A164857 a(n) = A164798(n)/(n-1)!.

1, 2, 12, 4, 30, 6, 5040, 8, 90, 240240, 360360, 12, 2346549004800, 210, 240, 16, 19275223968000, 18, 46113021921146019840000, 420, 214978908196382744494080000, 10237090866494416404480000

Offset

1,2

Comments

Each term a(n) is divisible by every prime from 2 to the largest prime dividing a(n). I.e., all terms are in sequence A055932.

Links

Table of n, a(n) for n=1..22.

Crossrefs

Cf. A055932, A164798, A164799, A164858.

Sequence in context: A082292 A248588 A332350 * A326125 A066700 A159323

Adjacent sequences: A164854 A164855 A164856 * A164858 A164859 A164860

Keyword

nonn

Author

Leroy Quet, Aug 28 2009

Extensions

Extended by Ray Chandler, Mar 14 2010

Status

approved