Number of 4Xn array permutations with each element moving zero or one space horizontally, diagonally or antidiagonally.
A189652
Number of 4Xn array permutations with each element moving zero or one space horizontally, diagonally or antidiagonally.
Terms
- a(0) =1a(1) =121a(2) =2161a(3) =107080a(4) =3774889a(5) =157346785a(6) =6156828073a(7) =248034953713
External references
- oeis: A189652