88592

Appears in sequences

• Triangle read by rows: T(n,k) is the number of noncrossing trees with n edges and k leaves.at n=39A091320
• Number of pairs (a,b) such that a*b = n! and d(a) = d(b) with d = A000005 and a <= b.at n=45A277621
• a(n) = Sum_{k=0..floor(n/2)} binomial(k+3,3) * binomial(2*k,2*n-4*k).at n=15A382495