G.f. satisfies: A(x) = 1 + x*Sum_{n>=0} (A(x)^3 - 1)^n.
A192946
G.f. satisfies: A(x) = 1 + x*Sum_{n>=0} (A(x)^3 - 1)^n.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =21a(4) =181a(5) =1746a(6) =18039a(7) =195214a(8) =2184381a(9) =25067856a(10) =293420578a(11) =3489516381a(12) =42044519283a(13) =512146618088
External references
- oeis: A192946