Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
%I #4 Feb 24 2012 12:51:10
%S 1,0,1,-3,4,-40,370,-2100,19052,-224712,2295380,-27161420,388309832,
%T -5572831680,85093639488,-1453531202760,26088826973648,
%U -491011275101888,9922199896825168,-211576194636993072
%N sec(sech(x)*log(x+1))=1+1/2!*x^2-3/3!*x^3+4/4!*x^4-40/5!*x^5...
%K sign
%O 0,4
%A Patrick Demichel (patrick.demichel(AT)hp.com)