G.f. A(x) satisfies: A(x) = (1/(1 - x)) * A(x^3)*A(x^5)*A(x^7)* ... *A(x^(2*k-1))* ...

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =2a(5) =3a(6) =4a(7) =5a(8) =6a(9) =9a(10) =11a(11) =13a(12) =17a(13) =20a(14) =25a(15) =33a(16) =39a(17) =46a(18) =59a(19) =69a(20) =83a(21) =103a(22) =121a(23) =143a(24) =175a(25) =206a(26) =242a(27) =293a(28) =342a(29) =400