Half the number of lower triangles of an (n+1) X (n+1) 0..5 array with no element equal to the average of its horizontal and vertical neighbors.
A194612
Half the number of lower triangles of an (n+1) X (n+1) 0..5 array with no element equal to the average of its horizontal and vertical neighbors.
Terms
- a(0) =69a(1) =12438a(2) =12561823a(3) =73569838704
External references
- oeis: A194612