Triangle read by rows: T(n,k) (n >= 1, k >= 0) = number of Dyck paths of semilength k avoiding the pattern U^n D^n.
A238094
Triangle read by rows: T(n,k) (n >= 1, k >= 0) = number of Dyck paths of semilength k avoiding the pattern U^n D^n.
Terms
- a(0) =0a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =2a(7) =4a(8) =4a(9) =1a(10) =1a(11) =2a(12) =5a(13) =13a(14) =25a(15) =25a(16) =1a(17) =1a(18) =2a(19) =5a(20) =14a(21) =41a(22) =106a(23) =196a(24) =196a(25) =1a(26) =1a(27) =2a(28) =5a(29) =14
External references
- oeis: A238094