Expansion of e.g.f. sec(sin(x)*log(x+1)).

Terms

a(0) =1a(1) =0a(2) =0a(3) =0a(4) =12a(5) =-60a(6) =210a(7) =-1260a(8) =18480a(9) =-235872a(10) =2421960a(11) =-26091120a(12) =365320296a(13) =-5967877344a(14) =97738612608