OFFSET
1,1
COMMENTS
There are two integer-valued interpolations between successive factorials.
LINKS
Clark Kimberling, Table of n, a(n) for n = 1..1000
FORMULA
a(n) = ceiling(Gamma(2n/3)).
MATHEMATICA
Table[Ceiling[Gamma[2n/3]], {n, 1, 35}]
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Apr 08 2017
STATUS
approved