G.f. S(x) satisfies: C(C(x)) + S(S(x)) = x such that C(x)^3 + (3/2)*S(x)^3 = x^3.

Terms

a(0) =0a(1) =6a(2) =0a(3) =0a(4) =648a(5) =0a(6) =0a(7) =793152a(8) =0a(9) =0a(10) =1262231424a(11) =0a(12) =0a(14) =0a(15) =0a(17) =0a(18) =0a(20) =0a(21) =0a(23) =0a(24) =0a(26) =0a(27) =0a(29) =0a(30) =0a(32) =0a(33) =0