G.f. satisfies: A(A(x)) = Sum_{n>=1} a(n)*x^n / (1-x)^(n*(n+1)/2), where g.f. A(x) = Sum_{n>=1} a(n)*x^n.
A193195
G.f. satisfies: A(A(x)) = Sum_{n>=1} a(n)*x^n / (1-x)^(n*(n+1)/2), where g.f. A(x) = Sum_{n>=1} a(n)*x^n.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =8a(4) =63a(5) =866a(6) =18444a(7) =559083a(8) =22773527a(9) =1197061138a(10) =78782852673
External references
- oeis: A193195