47834

Appears in sequences

• Number of different relations between n intervals (possibly of zero length) on a line.at n=4A059516
• Number of Dyck paths of semilength n for which the multiset of ascent lengths and the multiset of descent lengths are the same partition of n.at n=12A179544
• Number A(n,k) of paths from {0}^k to {n}^k that always move closer to {n}^k; square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=23A316674