11481120domain: NAppears in sequencesErroneous version of A342587.at n=33A008285Number of labeled order relations on n nodes in which longest chain has n-2 nodes.at n=5A055534Triangle, read by rows: T(n,k) is the number of labeled order relations on n nodes in which the longest chain has k nodes (n>=1, 1<=k<=n).at n=33A342587