OFFSET
0,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..90
FORMULA
E.g.f.: 1/(1-x^5).
From Ilya Gutkovskiy, Jan 20 2017: (Start)
a(n) ~ sqrt(2*Pi)*5^(5*n + 1/2)*n^(5*n + 1/2)/exp(5*n).
Sum_{n>=0} 1/a(n) = A269296. (End)
MATHEMATICA
(5*Range[0, 10])! (* Harvey P. Dale, May 06 2015 *)
PROG
(Magma) [Factorial(5*n): n in [0..10]]; // Vincenzo Librandi, Sep 24 2011
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Ralf Stephan, Dec 08 2004
STATUS
approved