A130726 Factorial of the largest prime less than or equal to n.

2, 6, 6, 120, 120, 5040, 5040, 5040, 5040, 39916800, 39916800, 6227020800, 6227020800, 6227020800, 6227020800, 355687428096000, 355687428096000, 121645100408832000, 121645100408832000, 121645100408832000

Offset

1,1

Links

Table of n, a(n) for n=1..20.

Formula

a(n) = A000142(A007917(n)). - R. J. Mathar, Aug 22 2007

Mathematica

NextPrime[Range[2, 30]+1, -1]! (* Harvey P. Dale, Jan 06 2012 *)

Crossrefs

Sequence in context: A356521 A189144 A367676 * A369119 A279841 A219195

Adjacent sequences: A130723 A130724 A130725 * A130727 A130728 A130729

Keyword

nonn

Author

Giovanni Teofilatto, Aug 17 2007

Status

approved