OFFSET
0,3
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..200
FORMULA
a(n) ~ (n-1)! * (-1)^(n+1) * cosh(1-exp(-1)) / (1-exp(-1))^n. - Vaclav Kotesovec, Jan 22 2015
MATHEMATICA
With[{nn=30}, CoefficientList[Series[Log[1+Log[1+x]]*Cosh[x], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Oct 20 2012 *)
CROSSREFS
KEYWORD
sign,easy
AUTHOR
EXTENSIONS
Extended with signs by Olivier Gérard, Mar 15 1997
STATUS
approved