G.f. A(x) satisfies: A(x) = 1 + x*[d/dx 1/(1 - x*A(x)^2)].
A305602
G.f. A(x) satisfies: A(x) = 1 + x*[d/dx 1/(1 - x*A(x)^2)].
Terms
- a(0) =1a(1) =1a(2) =6a(3) =54a(4) =628a(5) =8760a(6) =140904a(7) =2552151a(8) =51243864a(9) =1127982321a(10) =26993774100a(11) =697703846499
External references
- oeis: A305602