1674043

Appears in sequences

• Half the number of lower triangles of an (n+1) X (n+1) 0..4 array with no element equal to the average of its horizontal and vertical neighbors.at n=2A194611
• T(n,k) = Half the number of lower triangles of an (n+1) X (n+1) 0..k array with no element equal to the average of its horizontal and vertical neighbors.at n=17A194615
• Half the number of lower triangles of a 4 X 4 0..n array with no element equal to the average of its horizontal and vertical neighbors.at n=3A194617