Number of (n+1)X(n+1) 0..3 arrays with every 2X2 subblock having the absolute values of all six edge and diagonal differences no larger than 1.
A234153
Number of (n+1)X(n+1) 0..3 arrays with every 2X2 subblock having the absolute values of all six edge and diagonal differences no larger than 1.
Terms
- a(0) =46a(1) =2210a(2) =411712a(3) =305867942a(4) =906740091154
External references
- oeis: A234153