Triangle read by rows of number of Catalan paths (nonnegative, starting and ending at 0, step +/-1) of 2n steps with all values less than or equal to k.
A080935
Triangle read by rows of number of Catalan paths (nonnegative, starting and ending at 0, step +/-1) of 2n steps with all values less than or equal to k.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =1a(4) =4a(5) =5a(6) =1a(7) =8a(8) =13a(9) =14a(10) =1a(11) =16a(12) =34a(13) =41a(14) =42a(15) =1a(16) =32a(17) =89a(18) =122a(19) =131a(20) =132a(21) =1a(22) =64a(23) =233a(24) =365a(25) =417a(26) =428a(27) =429a(28) =1a(29) =128
External references
- oeis: A080935