G.f. satisfies: A(x) = Sum_{n>=0} Product_{k=1..n} Series_Reversion( x/A(x^k) ).
A206293
G.f. satisfies: A(x) = Sum_{n>=0} Product_{k=1..n} Series_Reversion( x/A(x^k) ).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =5a(4) =18a(5) =78a(6) =415a(7) =2467a(8) =16212a(9) =114623a(10) =863229a(11) =6858780a(12) =57156213a(13) =497147291a(14) =4497291265a(15) =42189445764a(16) =409478828567
External references
- oeis: A206293