13759200

Appears in sequences

• Triangular array read by rows: T(n,k) is the number of rooted labeled trees on n nodes that have exactly k nodes with outdegree = 1, n>=1, 0<=k<=n-1.at n=40A231602
• Triangle read by rows: T(n,k) (n >= 1, 4 <= k <= n+3) is the number of k-sequences of balls colored with at most n colors such that exactly four balls are the same color as some other ball in the sequence.at n=40A292999
• Expansion of e.g.f. 1/(1 - x^2 - x^3)^x.at n=10A371159