A062358 a(n) = n! / d(n), where d(n) is the number of divisors of n.

1, 1, 3, 8, 60, 180, 2520, 10080, 120960, 907200, 19958400, 79833600, 3113510400, 21794572800, 326918592000, 4184557977600, 177843714048000, 1067062284288000, 60822550204416000, 405483668029440000

Offset

1,3

Links

Harry J. Smith, Table of n, a(n) for n = 1..100

Example

a(7) = 2520 because 7!/d(7) = 5040/2 = 2520.

Mathematica

Table[n!/DivisorSigma[0, n], {n, 30}] (* Wesley Ivan Hurt, May 03 2024 *)

Prog

(PARI) a(n)=n!/numdiv(n);

Crossrefs

Sequence in context: A273433 A132517 A027262 * A110385 A333898 A224230

Adjacent sequences: A062355 A062356 A062357 * A062359 A062360 A062361

Keyword

easy,nonn

Author

Jason Earls, Jul 06 2001

Status

approved