G.f. satisfies A(x) = A(x^3)/(A(x^2) - A(x^3)), with A(0) = 0, A'(0) = 1.

Terms

a(0) =1a(1) =1a(2) =0a(3) =0a(4) =1a(5) =2a(6) =1a(7) =-1a(8) =-2a(9) =0a(10) =1a(11) =-2a(12) =-6a(13) =-6a(14) =0a(15) =4a(16) =1a(17) =-4a(18) =1a(19) =16a(20) =26a(21) =19a(22) =8a(23) =14a(24) =33a(25) =35a(26) =2a(27) =-38a(28) =-47a(29) =-30