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.
A194611
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.
Terms
- a(0) =36a(1) =3638a(2) =1674043a(3) =3703163910
External references
- oeis: A194611