A145499 Partial sums of A156832.

1, 2, 3, 6, 30, 120, 840, 3360, 13440, 134400, 739200, 6652800, 86486400, 778377600, 16345929600, 81729648000, 1389404016000, 12504636144000, 79196028912000, 1267136462592000, 81096733605888000, 3649353012264960000

Offset

1,2

Comments

a(n) is the largest divisor of n! such that a(n) - a(n-1) also divides n!.

Links

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

Crossrefs

Sequence in context: A108326 A002234 A074005 * A221310 A082611 A033689

Adjacent sequences: A145496 A145497 A145498 * A145500 A145501 A145502

Keyword

nonn

Author

Franklin T. Adams-Watters, Feb 17 2009

Status

approved