273378

Appears in sequences

• Square array T(k,n) by antidiagonals, where T(k,n) is number of ways of placing n identifiable nonnegative intervals with a total of exactly k starting and/or finishing points.at n=62A059515
• The sequence A059515(3,n). Number of ways of placing n identifiable nonnegative intervals with a total of exactly three starting and/or finishing points.at n=7A059517
• Smallest squarefree term of adjacent squarefree pairs in the sequence of practical numbers (A005153).at n=28A268156