G.f. A(x) satisfies: A(x) = 1+x + x^2*[d/dx A(x)^4].
A218224
G.f. A(x) satisfies: A(x) = 1+x + x^2*[d/dx A(x)^4].
Terms
- a(0) =1a(1) =1a(2) =4a(3) =44a(4) =684a(5) =13636a(6) =328000a(7) =9198240a(8) =294075040a(9) =10549834368a(10) =419626384128
External references
- oeis: A218224