G.f. A(x) satisfies: A(x)^2 = A( (x + 2*A(x)^2)^2 ).
A271960
G.f. A(x) satisfies: A(x)^2 = A( (x + 2*A(x)^2)^2 ).
Terms
- a(0) =1a(1) =2a(2) =9a(3) =50a(4) =312a(5) =2086a(6) =14613a(7) =105864a(8) =786627a(9) =5962110a(10) =45914544a(11) =358247214a(12) =2825957294a(13) =22499804332a(14) =180573770279
External references
- oeis: A271960