Expansion of g.f. A(x) satisfying A( x^3*A(x) - x^3*A(x)^2 ) = x^4.

Terms

a(0) =1a(1) =1a(2) =2a(3) =5a(4) =13a(5) =40a(6) =126a(7) =409a(8) =1360a(9) =4611a(10) =15878a(11) =55384a(12) =195282a(13) =694910a(14) =2492454a(15) =9001405a(16) =32704855a(17) =119462142a(18) =438441266a(19) =1616001547a(20) =5979144981a(21) =22199682130a(22) =82685478702a(23) =308864831632