G.f. A(x) satisfies: A(x) = (1 + 2*x*A(x))^6 / (1 + x*A(x))^3.
A352384
G.f. A(x) satisfies: A(x) = (1 + 2*x*A(x))^6 / (1 + x*A(x))^3.
Terms
- a(0) =1a(1) =9a(2) =111a(3) =1581a(4) =24468a(5) =399735a(6) =6784186a(7) =118444293a(8) =2113587804a(9) =38377421060a(10) =706774205943
External references
- oeis: A352384