G.f. A(x) satisfies (3*A(x^9)/A(x) - 1)^3 = 9*A(x^3)^3/A(x)^3 - 1 - 9*x.
A376528
G.f. A(x) satisfies (3*A(x^9)/A(x) - 1)^3 = 9*A(x^3)^3/A(x)^3 - 1 - 9*x.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =20a(4) =141a(5) =1045a(6) =8172a(7) =66681a(8) =560173a(9) =4815143a(10) =42154010a(11) =374555139a(12) =3369272574a(13) =30623456589a(14) =280807674622
External references
- oeis: A376528