Expansion of (1/x) * Series_Reversion( x / (1 + x^2 * (1 + x)^4) ).

Terms

a(0) =1a(1) =0a(2) =1a(3) =4a(4) =8a(5) =24a(6) =90a(7) =280a(8) =910a(9) =3228a(10) =11207a(11) =38984a(12) =139376a(13) =501072a(14) =1806233a(15) =6574624a(16) =24082670a(17) =88550416a(18) =327208061a(19) =1214486460a(20) =4523354624a(21) =16903923496a(22) =63371537341a(23) =238236119220a(24) =897912755874