Expansion of g.f. A(x) satisfying A(x) = A( x^2*(1+x)^3 ) / x.

Terms

a(0) =1a(1) =3a(2) =6a(3) =19a(4) =51a(5) =114a(6) =280a(7) =750a(8) =2064a(9) =5701a(10) =15378a(11) =40521a(12) =104947a(13) =267111a(14) =673050a(15) =1699517a(16) =4330599a(17) =11154867a(18) =29035169a(19) =76256925a(20) =201654330a(21) =535791945a(22) =1427841441a(23) =3811047033a(24) =10175838252a(25) =27152046705a(26) =72337813554a(27) =192304557673a(28) =509943239307