556512
domain: N
Appears in sequences
- a(n) = n*(n + 1)*(n + 2)*(n + 3)/2.at n=31A033486
- Sixth column (m=5) of (1,6)-Pascal triangle A096956.at n=30A096959
- a(n) = C(1+n,1) * C(2+n,1) * C(4+n,2).at n=30A112415
- a(4n+k) = (k+1)*binomial(5n+k,n)/(4n+k+1), k=0..3.at n=29A118968
- a(n) = 2*binomial(5*n+1,n)/(4*n+2).at n=7A118969
- Number of strong triangulations of a fixed square with n interior vertices.at n=8A242136
- Number of ways 2*n-1 people can vote on three candidates so that the Condorcet paradox arises.at n=30A277935
- Array read by antidiagonals: T(n,k) is the number of rooted strong triangulations of a disk with n interior nodes and 3+k nodes on the boundary.at n=53A341856