G.f. satisfies A(x) = 1 + x * A(x)^3 * (1 + A(x))^2/2.
A371669
G.f. satisfies A(x) = 1 + x * A(x)^3 * (1 + A(x))^2/2.
Terms
- a(0) =1a(1) =2a(2) =16a(3) =178a(4) =2300a(5) =32380a(6) =481932a(7) =7458370a(8) =118809868a(9) =1935217180a(10) =32083715344a(11) =539615356884
External references
- oeis: A371669