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

Author

Leroy Quet, Aug 28 2009

Keywords

• nonn

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.

Crossrefs

Cf. A055932, A164798, A164799, A164858.

Extensions

Extended by Ray Chandler, Mar 14 2010