a(n) = A120020(n)/n = coefficient of x^n in the n-th self-composition of the g.f. of A120010, divided by n, for n>=1.
A120022
a(n) = A120020(n)/n = coefficient of x^n in the n-th self-composition of the g.f. of A120010, divided by n, for n>=1.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =17a(4) =142a(5) =1558a(6) =21155a(7) =342584a(8) =6448217a(9) =138392304a(10) =3336869488a(11) =89325958048
External references
- oeis: A120022