Number of nX2 0..6 arrays with every element value z a city block distance of exactly z from another element value z.
A209052
Number of nX2 0..6 arrays with every element value z a city block distance of exactly z from another element value z.
Terms
- a(0) =2a(1) =13a(2) =115a(3) =1468a(4) =22738a(5) =415695a(6) =7893620a(7) =136638297a(8) =2269919266
External references
- oeis: A209052