Number of below-diagonal paths from (0,0) to (n,n) using steps (1,0), (0,1) and (2k-1,1), k a positive integer.
A133656
Number of below-diagonal paths from (0,0) to (n,n) using steps (1,0), (0,1) and (2k-1,1), k a positive integer.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =23a(4) =99a(5) =456a(6) =2199a(7) =10962a(8) =56033a(9) =292094a(10) =1546885a(11) =8299058a(12) =45010492a(13) =246377362a(14) =1359339710a(15) =7551689783a(16) =42206697209a(17) =237156951618
External references
- oeis: A133656