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%I #10 Sep 30 2025 20:34:17
%S 0,0,-1,0,-6,8,-105,448,-3780,29360,-231525,2498848,-20985426,
%T 271494104,-2503393893,35568205216,-346194368520,4969746747488,
%U -41862411119529,433992302190016,4063211694577570,-232678981367758168
%N Expansion of e.g.f. sin(log(x+1) - tan(x)).
%e -1/2!*x^2 - 6/4!*x^4 + 8/5!*x^5 - 105/6!*x^6 ...
%o (PARI) x = 'x + O('x^30); concat([0, 0], Vec(serlaplace(sin(log(x+1) - tan(x))))) \\ _Michel Marcus_, Aug 02 2018
%K sign
%O 0,5
%A _Patrick Demichel_
%E a(0)=a(1)=0 inserted and title improved by _Sean A. Irvine_, Aug 01 2018