Number of lattice paths from (0,0) to (n,n) using steps S={(k,0),(0,k)|0<k<=3} which never go above the line y=x.
A175883
Number of lattice paths from (0,0) to (n,n) using steps S={(k,0),(0,k)|0<k<=3} which never go above the line y=x.
Terms
- a(0) =1a(1) =1a(2) =5a(3) =29a(4) =170a(5) =1093a(6) =7346a(7) =50957a(8) =362476a(9) =2629150a(10) =19371533a(11) =144585146a(12) =1090886362a(13) =8306621114a(14) =63752890716a(15) =492671044866
External references
- oeis: A175883