The number of paths of length 7*n from the origin to the line y = 3*x/4 with unit east and north steps that stay below the line or touch it.

A300390

The number of paths of length 7*n from the origin to the line y = 3*x/4 with unit east and north steps that stay below the line or touch it.

Terms

    a(0) =1a(1) =5a(2) =227a(3) =15090a(4) =1182187a(5) =101527596a(6) =9247179818a(7) =877362665128

External references