Number of (n+1) X (n+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally, vertically or antidiagonally.
A232571
Number of (n+1) X (n+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally, vertically or antidiagonally.
Terms
- a(0) =16a(1) =1064a(2) =767942a(3) =4107586864
External references
- oeis: A232571