Number of nX4 0..2 arrays with no element equal to the average of its horizontal and vertical neighbors.
A197438
Number of nX4 0..2 arrays with no element equal to the average of its horizontal and vertical neighbors.
Terms
- a(0) =28a(1) =1736a(2) =98356a(3) =5184780a(4) =279785830a(5) =15068331840a(6) =811669674888
External references
- oeis: A197438