Expansion of g.f. A(x) satisfying A(x)^2 = (1+x) * A(x*A(x)) with A(0) = 0.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =6a(6) =12a(7) =26a(8) =56a(9) =124a(10) =278a(11) =632a(12) =1454a(13) =3378a(14) =7918a(15) =18694a(16) =44427a(17) =106175a(18) =255031a(19) =615320a(20) =1490588a(21) =3624013a(22) =8840006a(23) =21628173a(24) =53061676a(25) =130508716a(26) =321743567a(27) =794907220a(28) =1967848545a(29) =4880622339