1005630
domain: N
Appears in sequences
- Triangle read by rows: T(n,k) is number of ordered trees with n edges and having exactly k vertices all of whose children are leaves (1<=k<=floor(n/2) for n>=2).at n=44A114502
- Triangle read by rows: T(n,k) is the number of bargraphs of semiperimeter n having k peaks (n >= 2, k >= 1).at n=37A271940
- Tetraprime numbers differing by more than 3 from any other squarefree number.at n=15A369238