OFFSET
0,4
LINKS
Robert Israel, Table of n, a(n) for n = 0..447
FORMULA
E.g.f. log(1+log(1+x)^2)/2. - Robert Israel, Dec 26 2018
MAPLE
S:= series(log(1+log(1+x)^2)/2, x, 31):
seq(coeff(S, x, n)*n!, n=0..30); # Robert Israel, Dec 26 2018
MATHEMATICA
Log[ 1+Log[ 1+x ]^2 ]/2
CROSSREFS
KEYWORD
sign
AUTHOR
EXTENSIONS
Extended with signs, Mar 1997
STATUS
approved