OFFSET
1,7
PROG
(PARI) a(n) = floor( log(n!) / log(31) ); \\ Michel Marcus, Nov 02 2013
(PARI) a(n)=lngamma(n+1)\log(31) \\ Charles R Greathouse IV, Sep 04 2015
(PARI) a(n)=logint(n!, 31) \\ Charles R Greathouse IV, Sep 04 2015
CROSSREFS
KEYWORD
nonn
AUTHOR
Artur Jasinski, Jan 03 2007
STATUS
approved