OFFSET
0,3
COMMENTS
x^(x^(n-1)) = (((x^x)^x)^ ... )^x with n x's.
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..275
MAPLE
a:= n-> n! *coeff(series( (x+1)^((x+1)^(n-1)) , x, n+1), x, n):
seq(a(n), n=0..20);
CROSSREFS
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Sep 04 2012
STATUS
approved