a(n) = A120014(n)/n = coefficient of x^n, divided by n, in the n-th iteration of the g.f. of A120009 for n>=1.
A120016
a(n) = A120014(n)/n = coefficient of x^n, divided by n, in the n-th iteration of the g.f. of A120009 for n>=1.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =15a(4) =106a(5) =982a(6) =11383a(7) =159595a(8) =2636590a(9) =50278058a(10) =1088631886a(11) =26409797526a(12) =710034913212
External references
- oeis: A120016