G.f. satisfies A(x) = -(A(x^3) + A(x^4)) / A(-x^2).

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =0a(5) =2a(6) =2a(7) =2a(8) =4a(9) =7a(10) =4a(11) =11a(12) =4a(13) =12a(14) =8a(15) =19a(16) =14a(17) =29a(18) =23a(19) =47a(20) =32a(21) =74a(22) =44a(23) =110a(24) =83a(25) =164a(26) =135a(27) =276a(28) =196a(29) =439