E.g.f. arcsin(log(x+1)/exp(x)).

Terms

a(0) =0a(1) =1a(2) =-3a(3) =9a(4) =-42a(5) =313a(6) =-3025a(7) =35091a(8) =-482468a(9) =7704257a(10) =-139729063a(11) =2834494245a(12) =-63612631742