121550
domain: N
Appears in sequences
- Central numbers in the (2,3)-Pascal triangle A029600.at n=9A029609
- Expansion of (1+3*x)/(1-x)^10.at n=9A055843
- a(n) = 30*binomial(2n,n)/(n+3).at n=9A078818
- Triangle read by rows: T(n,k) is the number of standard tableaux of shape (n,n,k) (0<=k<=n).at n=31A094236
- Tenth column (m=9) of (1,4)-Pascal triangle A095666.at n=9A095819
- Ninth column of (1,5)-Pascal triangle A096940.at n=10A096946
- Triangle read by rows: T(n,k) is the number of noncrossing path sets on n nodes with k paths and each path having at least two nodes, 0 <= k <= floor(n/2).at n=54A390908