Series reversion of x+x^2+2*x^3.

Terms

a(0) =1a(1) =-1a(2) =0a(3) =5a(4) =-16a(5) =14a(6) =96a(7) =-495a(8) =880a(9) =2002a(10) =-17888a(11) =48178a(12) =19040a(13) =-665380a(14) =2501312a(15) =-1983543a(16) =-23639952a(17) =124654250a(18) =-216770400a(19) =-722621130a(20) =5941209120a(21) =-15657865020a(22) =-12958545600a(23) =267306817050a(24) =-972419359392a(25) =534946077108