26283115038
domain: N
Appears in sequences
- a(n) = 2 * Sum_{k=0..n-1} binomial(n-1, k)*binomial(n+k, k).at n=15A002003
- Coordination sequence for 15-dimensional cubic lattice.at n=15A035710
- Number of symmetric Schroeder paths of length 2n (A Schroeder path of length 2n is a lattice path from (0,0) to (2n,0) consisting of U=(1,1), D=(1,-1) and H=(2,0) steps and never going below the x-axis).at n=29A110110
- Row sums of A123160.at n=15A123164