login
A062871
a(n) is the integer part of the geometric mean of n! and n^n.
2
1, 1, 2, 12, 78, 612, 5795, 64425, 822470, 11856945, 190494094, 3374719083, 65351559893, 1373320643022, 31124359701926, 756718320351008, 19645797269948963, 542437979097898912, 15871685747774947592
OFFSET
0,3
LINKS
MATHEMATICA
Floor[Sqrt[n!*n^n]]
PROG
(PARI) a(n)={sqrtint(n! * n^n)} \\ Harry J. Smith, Aug 12 2009
(Python)
from math import isqrt, factorial
def A062871(n): return isqrt(factorial(n)*n**n) # Chai Wah Wu, Jun 19 2024
CROSSREFS
Sequence in context: A081014 A223771 A370442 * A306272 A227968 A289662
KEYWORD
easy,nonn
AUTHOR
Olivier Gérard, Jun 26 2001
STATUS
approved