Number of paths starting at {3}^n to a border position where one component equals 0 using steps that decrement one component by 1.

A210486

Number of paths starting at {3}^n to a border position where one component equals 0 using steps that decrement one component by 1.

Terms

    a(0) =0a(1) =1a(2) =20a(3) =543a(4) =22096a(5) =1304045a(6) =106478916a(7) =11545342795

External references