Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n having k peak plateaux (0<=k<=floor(n/2)). A peak plateau is a run of consecutive peaks that is preceded by an upstep and followed by a down step; a peak consists of an upstep followed by a downstep.
A143952
Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n having k peak plateaux (0<=k<=floor(n/2)). A peak plateau is a run of consecutive peaks that is preceded by an upstep and followed by a down step; a peak consists of an upstep followed by a downstep.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =4a(6) =1a(7) =12a(8) =1a(9) =1a(10) =33a(11) =8a(12) =1a(13) =88a(14) =42a(15) =1a(16) =1a(17) =232a(18) =183a(19) =13a(20) =1a(21) =609a(22) =717a(23) =102a(24) =1a(25) =1a(26) =1596a(27) =2622a(28) =624a(29) =19
External references
- oeis: A143952