57514
domain: N
Appears in sequences
- Triangle read by rows: T(n,k) = (1/k) times the number of functions from an n-element set into but not onto a k-element set.at n=48A101031
- a(n) = 3*3^n - 3*2^n + 1.at n=8A126644
- Position of cubes in the EKG sequence (A064413).at n=38A140418
- The number of ways of partitioning the multiset {1,1,2,3,...,n-1} into exactly three nonempty parts.at n=9A168583
- Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 5,4,2,0,1,1,0 for x=0,1,2,3,4,5,6.at n=5A197794