Number of nX4 0..3 arrays with every element value z a city block distance of exactly z from another element value z.

A209176

Number of nX4 0..3 arrays with every element value z a city block distance of exactly z from another element value z.

Terms

    a(0) =12a(1) =1243a(2) =236727a(3) =43361446a(4) =6170585599a(5) =815113744488

External references