101551822350
domain: N
Appears in sequences
- Number of irreducible chord diagrams with 2n nodes.at n=12A000699
- G.f. satisfies: A(x) = G(x/A(x)) where o.g.f. G(x) = A(x*G(x)) = Sum_{n>=0} A001464(n)*x^n.at n=24A172394
- G.f. satisfies: A(x) = G(x/A(x)) where o.g.f. G(x) = A(x*G(x)) = Sum_{n>=0} A000085(n)*x^n.at n=24A172395
- Triangle T(n,k) read by rows: coefficients of polynomials P_n(t) defined in Formula section. .at n=41A286798