115948830660
domain: N
Appears in sequences
- Sum of adjacent Catalan numbers.at n=21A005807
- Expansion of (1+x^2*C)*C, where C = (1-(1-4*x)^(1/2))/(2*x) is g.f. for Catalan numbers, A000108.at n=22A071716
- Sum of all n-digit Catalan numbers.at n=10A131468
- The matrix-vector product A133566 * A000108.at n=22A133603
- Expansion of (1+x)*c(x), c(x) the g.f. of A000108.at n=22A167422