E.g.f. A(x) satisfies A(A(x)) = x/(1-x)^2.
A091138
E.g.f. A(x) satisfies A(A(x)) = x/(1-x)^2.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =6a(4) =15a(5) =0a(6) =315a(7) =1890a(8) =-82215a(9) =708750a(10) =41008275a(11) =-1385549550a(12) =-33403344975
External references
- oeis: A091138