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

Terms

a(0) =1a(1) =1a(2) =0a(3) =1a(4) =1a(5) =2a(6) =0a(7) =3a(8) =2a(9) =0a(10) =7a(11) =7a(12) =0a(13) =4a(14) =21a(15) =5a(16) =1a(17) =6a(18) =46a(19) =29a(20) =0a(21) =9a(22) =65a(23) =114a(24) =15a(25) =0a(26) =13a(27) =113a(28) =304a(29) =122