G.f. D(x) satisfies: Sum_{n>=0} n * (x + (-1)^n*A(x))^n = 0, where A(x) = D^8(x), the 8th iteration of D(x), and A(x) is the g.f. of A318640.

A318643

G.f. D(x) satisfies: Sum_{n>=0} n * (x + (-1)^n*A(x))^n = 0, where A(x) = D^8(x), the 8th iteration of D(x), and A(x) is the g.f. of A318640.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =25a(4) =73a(5) =1025a(6) =4913a(7) =48985a(8) =311305a(9) =2393953a(10) =17903761a(11) =140986201a(12) =1096160649a(13) =7777051265a(14) =61667165361a(15) =597402170649

External references