G.f. satisfies: A(x) = A(x^2)^2 + x*A(x^2)^4.

Terms

a(0) =1a(1) =1a(2) =2a(3) =4a(4) =5a(5) =14a(6) =12a(7) =44a(8) =22a(9) =117a(10) =54a(11) =316a(12) =88a(13) =756a(14) =208a(15) =1836a(16) =317a(17) =4126a(18) =690a(19) =9216a(20) =1098a(21) =19906a(22) =2160a(23) =41876a(24) =3556a(25) =87448a(26) =6226a(27) =175832a(28) =11088a(29) =356368