Number of n X 4 0..2 arrays with every element value z a city block distance of exactly z from another element value z.
A209472
Number of n X 4 0..2 arrays with every element value z a city block distance of exactly z from another element value z.
Terms
- a(0) =10a(1) =635a(2) =46470a(3) =2497939a(4) =128482557a(5) =6446131005a(6) =325528559843
External references
- oeis: A209472