The number of random walks on the simple square lattice that start at the origin (0,0) and pass through (1,0) after 2n+1 steps before having returned to the origin.
A337870
The number of random walks on the simple square lattice that start at the origin (0,0) and pass through (1,0) after 2n+1 steps before having returned to the origin.
Terms
- a(0) =1a(1) =2a(2) =16a(3) =166a(4) =1934a(5) =24076a(6) =312906a(7) =4191822a(8) =57433950a(9) =800740450a(10) =11319707546a(11) =161841539812
External references
- oeis: A337870