Number of lattice paths without interior points from {4}^n to {0}^n using steps that decrement one component by 1.
A225221
Number of lattice paths without interior points from {4}^n to {0}^n using steps that decrement one component by 1.
Terms
- a(0) =1a(1) =0a(2) =2a(3) =2550a(4) =8059800a(5) =57010275000
External references
- oeis: A225221