Number of (n+1)X(n+1) 0..2 arrays with the maximum plus the minimum of every 2X2 subblock equal.
A238172
Number of (n+1)X(n+1) 0..2 arrays with the maximum plus the minimum of every 2X2 subblock equal.
Terms
- a(0) =81a(1) =5321a(2) =2027833a(3) =4299264833
External references
- oeis: A238172