Number of n*(n+1)-step n-dimensional nonnegative closed lattice walks starting at the origin and using steps that increment all components or decrement one component by 1.

A340590

Number of n*(n+1)-step n-dimensional nonnegative closed lattice walks starting at the origin and using steps that increment all components or decrement one component by 1.

Terms

    a(0) =1a(1) =1a(2) =16a(3) =24444a(4) =8204167296

External references