The number of walks of length 2n on the square lattice that start from the origin (0,0) and end at the vertex (2,0).
A337900
The number of walks of length 2n on the square lattice that start from the origin (0,0) and end at the vertex (2,0).
Terms
- a(0) =1a(1) =16a(2) =225a(3) =3136a(4) =44100a(5) =627264a(6) =9018009a(7) =130873600a(8) =1914762564a(9) =28210561600a(10) =418151049316
External references
- oeis: A337900