Number of nX2 1..6 arrays with every element value z a city block distance of exactly z from another element value z.
A209056
Number of nX2 1..6 arrays with every element value z a city block distance of exactly z from another element value z.
Terms
- a(0) =1a(1) =2a(2) =16a(3) =152a(4) =1721a(5) =24255a(6) =353922a(7) =4498393a(8) =53903971
External references
- oeis: A209056