G.f. A(x) satisfies A(x) = A(x^3)/A(x^2) - x^2.

Terms

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