A068625 Reduced root factorial of n: product of the smallest integer root of numbers from 1 to n.

1, 2, 6, 12, 60, 360, 2520, 5040, 15120, 151200, 1663200, 19958400, 259459200, 3632428800, 54486432000, 108972864000, 1852538688000, 33345696384000, 633568231296000, 12671364625920000, 266098657144320000

Offset

1,2

Links

Table of n, a(n) for n=1..21.

Example

a(8) = 1*2*3*2*5*6*7*2= 5040.

Crossrefs

Partial products of A052410.

Sequence in context: A072938 A160274 A048803 * A162935 A328459 A051451

Adjacent sequences: A068622 A068623 A068624 * A068626 A068627 A068628

Keyword

easy,nonn

Author

Amarnath Murthy, Feb 26 2002

Status

approved