A062008 - OEIS

A062008

Number of divisors of (n!)!, or A000197.

1, 1, 2, 30, 242880, 23565900177211392000, 2773739201349556936377871973938118055565107020522751759201737480601600000000000000

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OFFSET

0,3

LINKS

MAPLE

with(numtheory): A062008:=n->tau((n!)!): seq(A062008(n), n=0..6); # Wesley Ivan Hurt, Nov 08 2014

MATHEMATICA

Table[DivisorSigma[0, (n!)!], {n, 0, 6}] (* Wesley Ivan Hurt, Nov 08 2014 *)

PROG

(PARI) for(n=0, 6, print(numdiv(n!!)))

(PARI) { for (n=0, 7, write("b062008.txt", n, " ", numdiv(n!!)) ) } \\ [Harry J. Smith, Jul 29 2009]

(Magma) [NumberOfDivisors(Factorial(Factorial(n))): n in [0..7]]; // Vincenzo Librandi, Nov 09 2014

CROSSREFS

KEYWORD

easy,nonn

AUTHOR

Jason Earls, Jul 04 2001

STATUS

approved