A365628 a(n) = binomial(primorial(n), n).

1, 2, 15, 4060, 78738660, 545754554499462, 1018081517447240182211275, 1793004475784081302284255717158418120, 1943305407393725342965469143054357602760779899437185, 3772316402417100592416011698371929155605067111502494326520988270728160

Offset: 0

Author

Darío Clavijo, Sep 13 2023

Keywords

• nonn

Crossrefs

Cf. A002110, A007318, A014062, A060604, A086687.

Programs

PARI

a(n) = binomial(vecprod(primes(n)), n); \\ Michel Marcus, Sep 14 2023

Python

from sympy import binomial, primorial
a = lambda n: binomial(primorial(n), n)
print([a(n) for n in range(1,10)])

Formula

a(n) = binomial(A002110(n), n).