Number of lower triangles of an n X n 0..6 array with each element unequal to the sum mod 7 of its horizontal and vertical neighbors.
A194503
Number of lower triangles of an n X n 0..6 array with each element unequal to the sum mod 7 of its horizontal and vertical neighbors.
Terms
- a(0) =6a(1) =216a(2) =46872a(3) =60466140a(4) =470184984576
External references
- oeis: A194503