G.f. A(x) satisfies A(A(A(..(A(x))..))) = B(x) (13th self-COMPOSE of A) such that the coefficients of B(x) consist only of numbers {1,2,3,..,13}, with B(0) = 0.

A112127

G.f. A(x) satisfies A(A(A(..(A(x))..))) = B(x) (13th self-COMPOSE of A) such that the coefficients of B(x) consist only of numbers {1,2,3,..,13}, with B(0) = 0.

Terms

    a(0) =1a(1) =1a(2) =-11a(3) =193a(4) =-4043a(5) =92233a(6) =-2188907a(7) =52544305a(8) =-1250612651a(9) =29060631481a(10) =-651497950667

External references