OFFSET
1,2
COMMENTS
The next term has 250 digits. - Harvey P. Dale, Dec 19 2014
MATHEMATICA
s=0; lst={}; Do[AppendTo[lst, s+=n!^n! ], {n, 1, 6, 1}]; lst
Accumulate[Table[(k!)^k!, {k, 5}]] (* Harvey P. Dale, Dec 19 2014 *)
PROG
(PARI) a(n)=sum(k=1, n, k!^k!) \\ Charles R Greathouse IV, Oct 12 2009
CROSSREFS
KEYWORD
nonn
AUTHOR
Vladimir Joseph Stephan Orlovsky, Sep 24 2009
STATUS
approved