Irregular triangle read by rows: row n gives numbers of maximal chains of lengths n-1, n, n+1, ... in the Tamari lattice T_n.
A282698
Irregular triangle read by rows: row n gives numbers of maximal chains of lengths n-1, n, n+1, ... in the Tamari lattice T_n.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =4a(6) =2a(7) =2a(8) =1a(9) =10a(10) =22a(11) =22a(12) =18a(13) =13a(14) =12a(15) =1a(16) =20a(17) =112a(18) =232a(19) =382a(20) =348a(21) =456a(22) =390a(23) =420a(24) =334a(25) =286a(26) =1a(27) =35a(28) =392a(29) =1744
External references
- oeis: A282698