G.f. A(x) satisfies: 1 = Sum_{n>=0} 3^n * ((1+x)^n - A(x))^n.
A326283
G.f. A(x) satisfies: 1 = Sum_{n>=0} 3^n * ((1+x)^n - A(x))^n.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =60a(4) =1839a(5) =75006a(6) =3756681a(7) =221373108a(8) =14946242445
External references
- oeis: A326283