Half the number of lower triangles of an (n+1) X (n+1) 0..3 array with no element equal to the average of its horizontal and vertical neighbors.
A194610
Half the number of lower triangles of an (n+1) X (n+1) 0..3 array with no element equal to the average of its horizontal and vertical neighbors.
Terms
- a(0) =16a(1) =775a(2) =132214a(3) =86867366a(4) =214726600125
External references
- oeis: A194610