Number of 8Xn array permutations with each element moving zero or one space horizontally or diagonally.
A189456
Number of 8Xn array permutations with each element moving zero or one space horizontally or diagonally.
Terms
- a(0) =1a(1) =1597a(2) =250000a(3) =106834338a(4) =33995627281
External references
- oeis: A189456