Number of nX4 1..3 arrays with every element value z a city block distance of exactly z from another element value z.
A209363
Number of nX4 1..3 arrays with every element value z a city block distance of exactly z from another element value z.
Terms
- a(0) =3a(1) =122a(2) =10796a(3) =804545a(4) =42033202a(5) =2043431891a(6) =95757163046
External references
- oeis: A209363