A177946 a(n) = prime(n)! / n!.

2, 3, 20, 210, 332640, 8648640, 70572902400, 3016991577600, 71241227785728000, 2436552577639909048320000, 205999445200465037721600000, 28734252852655074735274328064000000, 5372155913332392772506888374845440000000

Offset

1,1

Links

Table of n, a(n) for n=1..13.

Index entries for sequences related to factorial numbers.

Formula

a(n) = A039716(n)/A000142(n).

Prog

(PARI) a(n) = prime(n)! / n!; \\ Michel Marcus, Sep 08 2015

Crossrefs

Cf. A000142, A039716, A157132.

Sequence in context: A261317 A353921 A361028 * A006246 A349600 A110372

Adjacent sequences: A177943 A177944 A177945 * A177947 A177948 A177949

Keyword

nonn

Author

Reinhard Zumkeller, May 15 2010

Extensions

More terms from Michel Marcus, Sep 08 2015

Status

approved