Number of 7Xn array permutations with each element moving zero or one space horizontally or diagonally.
A189455
Number of 7Xn array permutations with each element moving zero or one space horizontally or diagonally.
Terms
- a(0) =1a(1) =610a(2) =50000a(3) =9712873a(4) =1467726607a(5) =248187289625
External references
- oeis: A189455