G.f. A(x) satisfies: A( x - A(x)^2*(1 + A(x))^2 ) = x.
A291421
G.f. A(x) satisfies: A( x - A(x)^2*(1 + A(x))^2 ) = x.
Terms
- a(0) =1a(1) =1a(2) =6a(3) =45a(4) =414a(5) =4310a(6) =49068a(7) =598253a(8) =7707738a(9) =103981222a(10) =1459259444a(11) =21201220726a(12) =317718863636
External references
- oeis: A291421