Half the number of lower triangles of an (n+1) X (n+1) 0..2 array with no element equal to the average of its horizontal and vertical neighbors.
A194609
Half the number of lower triangles of an (n+1) X (n+1) 0..2 array with no element equal to the average of its horizontal and vertical neighbors.
Terms
- a(0) =5a(1) =96a(2) =4322a(3) =571364a(4) =205801866a(5) =202803700252
External references
- oeis: A194609