Half the number of lower triangles of a 5 X 5 0..n array with no element equal to the average of its horizontal and vertical neighbors.
A194618
Half the number of lower triangles of a 5 X 5 0..n array with no element equal to the average of its horizontal and vertical neighbors.
Terms
- a(0) =849a(1) =571364a(2) =86867366a(3) =3703163910a(4) =73569838704a(5) =873084601728
External references
- oeis: A194618