Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock having the absolute values of all six edge and diagonal differences no larger than 1.
A234115
Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock having the absolute values of all six edge and diagonal differences no larger than 1.
Terms
- a(0) =31a(1) =1361a(2) =231713a(3) =157630963a(4) =427196005695
External references
- oeis: A234115