Number of lower triangles of an n X n 0..3 array with each element unequal to the sum mod 4 of its horizontal and vertical neighbors.
A194500
Number of lower triangles of an n X n 0..3 array with each element unequal to the sum mod 4 of its horizontal and vertical neighbors.
Terms
- a(0) =3a(1) =27a(2) =776a(3) =59052a(4) =14348907a(5) =10460353203
External references
- oeis: A194500