Lagrange inversion, or reversion, for divided power series with odd powers only.

Terms

a(0) =1a(1) =-1a(2) =10a(3) =-1a(4) =-280a(5) =56a(6) =-1a(7) =15400a(8) =-4620a(9) =126a(10) =120a(11) =-1a(12) =-1401400a(13) =560560a(14) =-36036a(15) =-17160a(16) =792a(17) =220a(18) =-1a(19) =190590400a(20) =-95295200a(21) =10090080a(22) =3203200a(23) =-126126a(24) =-360360a(25) =-50050a(26) =1716a(27) =2002a(28) =364a(29) =-1