Number of lattice paths in the lattice [0..2n] X [0..2n] which do not pass through the point (n,n).
A071799
Number of lattice paths in the lattice [0..2n] X [0..2n] which do not pass through the point (n,n).
Terms
- a(0) =2a(1) =34a(2) =524a(3) =7970a(4) =121252a(5) =1850380a(6) =28337976a(7) =435443490a(8) =6711230900a(9) =103711749284
External references
- oeis: A071799