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%I #9 Mar 15 2023 15:22:50
%S 0,1,0,-2,12,-40,120,208,-6048,64640,-428160,986368,29812992,
%T -652487680,8332047360,-60911593472,-293043130368,20973645824000,
%U -456591699640320,6185783347314688,-26996975653552128
%N Expansion of e.g.f. log(sec(x) + sin(x)).
%F E.g.f.: log(sec(x) + sin(x)).
%e x - 2/3!*x^3 + 12/4!*x^4 - 40/5!*x^5 + 120/6!*x^6 ...
%K sign
%O 0,4
%A Patrick Demichel (patrick.demichel(AT)hp.com)
%E a(0)=0 inserted and title improved by _Sean A. Irvine_, Aug 01 2018
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