1487200

Appears in sequences

• Triangle T(n,k) of associated Stirling numbers of second kind, n >= 2, 1 <= k <= floor(n/2).at n=39A008299
• Number of ways of placing n labeled balls into 4 indistinguishable boxes with at least 2 balls in each box.at n=5A058844
• Triangle of Ward numbers T(n,k) read by rows.at n=39A134991
• Triangle of Ward numbers T(n,k) (n>=0, k=0 if n=0, otherwise 0 <= k <= n-1) read by rows.at n=42A181996
• Triangle read by rows, Ward numbers T(n, k) = Sum_{m=0..k} (-1)^(m + k) * binomial(n + k, n + m) * Stirling2(n + m, m), for n >= 0, 0 <= k <= n.at n=49A269939