OFFSET
0,4
LINKS
Robert Israel, Table of n, a(n) for n = 0..299
EXAMPLE
1 + (1/2!)*x^2 - (3/3!)*x^3 + (28/4!)*x^4 - (160/5!)*x^5 + ...
MAPLE
N:= 300: # number of terms desired
S:= series(sec(sec(x)*log(x+1)), x, N):
seq(coeff(S, x, j)*j!, j=0 .. N-1);
# Robert Israel, Feb 17 2013
CROSSREFS
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
STATUS
approved