Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n having k DDUU's starting at level 2.
A135329
Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n having k DDUU's starting at level 2.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =5a(4) =13a(5) =1a(6) =36a(7) =6a(8) =106a(9) =25a(10) =1a(11) =327a(12) =94a(13) =8a(14) =1045a(15) =342a(16) =42a(17) =1a(18) =3433a(19) =1230a(20) =189a(21) =10a(22) =11529a(23) =4411a(24) =792a(25) =63a(26) =1a(27) =39414a(28) =15840a(29) =3192
External references
- oeis: A135329