The number of walks of length 2n+1 on the square lattice that start from the origin (0,0) and end at the vertex (3,0).
A337901
The number of walks of length 2n+1 on the square lattice that start from the origin (0,0) and end at the vertex (3,0).
Terms
- a(0) =1a(1) =25a(2) =441a(3) =7056a(4) =108900a(5) =1656369a(6) =25050025a(7) =378224704a(8) =5712638724a(9) =86394844900
External references
- oeis: A337901