165002460
domain: N
Appears in sequences
- Sum of adjacent Catalan numbers.at n=16A005807
- a(n) = 6*(n+1)*(2*n+6)!/((n+3)!*(n+5)!).at n=14A028379
- Third diagonal of array in A059347.at n=32A059348
- 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=17A071716
- Self-convolution of repeated Catalan numbers.at n=32A104722
- The matrix-vector product A133080 * A000108.at n=17A133602
- Expansion of (1+x)*c(x), c(x) the g.f. of A000108.at n=17A167422