A132369 a(n) = PrimePi(n)!.

1, 1, 2, 2, 6, 6, 24, 24, 24, 24, 120, 120, 720, 720, 720, 720, 5040, 5040, 40320, 40320, 40320, 40320, 362880, 362880, 362880, 362880, 362880, 362880, 3628800, 3628800, 39916800, 39916800, 39916800, 39916800, 39916800, 39916800, 479001600

Offset

1,3

Links

Table of n, a(n) for n=1..37.

Mathematica

Table[PrimePi[n]!, {n, 37}] (* James C. McMahon, Mar 07 2025 *)

Crossrefs

Cf. A000720.

Sequence in context: A128014 A135401 A129881 * A282169 A081123 A056038

Adjacent sequences: A132366 A132367 A132368 * A132370 A132371 A132372

Keyword

easy,nonn

Author

Giovanni Teofilatto, Nov 09 2007

Extensions

Extended by Ray Chandler, Mar 02 2009

Status

approved