Number of lattice paths from (0,0) to (n,n) using steps (1,0),(2,0),(3,0),(0,1).
A383478
Number of lattice paths from (0,0) to (n,n) using steps (1,0),(2,0),(3,0),(0,1).
Terms
- a(0) =1a(1) =2a(2) =9a(3) =44a(4) =220a(5) =1134a(6) =5950a(7) =31608a(8) =169488a(9) =915420a(10) =4972825a(11) =27141036a(12) =148711836a(13) =817516196a(14) =4506838380a(15) =24906188912a(16) =137933068572a(17) =765324011736
External references
- oeis: A383478