OFFSET
0,3
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..85
FORMULA
a(n) = (2n)! * [x^(2n)] log(1+sin(x)*x)/2.
MAPLE
a:= n-> coeff(series(ln(1+sin(x)*x)/2, x, 2*n+1), x, 2*n)*(2*n)!:
seq(a(n), n=0..20); # Alois P. Heinz, Jun 03 2012
MATHEMATICA
Log[ 1+Sin[ x ]*x ]/2 (* Even Part *)
CROSSREFS
KEYWORD
sign
AUTHOR
EXTENSIONS
Extended with signs Mar 1997
STATUS
approved