Number of n X n symmetric 0..7 arrays with no element equal to the product mod 8 of any two of its horizontal and vertical neighbors.
A193504
Number of n X n symmetric 0..7 arrays with no element equal to the product mod 8 of any two of its horizontal and vertical neighbors.
Terms
- a(0) =8a(1) =350a(2) =75812a(3) =86657138a(4) =519573586778
External references
- oeis: A193504