Number of n X n symmetric 0..7 arrays with no element equal to the sum mod 8 of any two of its horizontal and vertical neighbors.
A193225
Number of n X n symmetric 0..7 arrays with no element equal to the sum mod 8 of any two of its horizontal and vertical neighbors.
Terms
- a(0) =8a(1) =343a(2) =54769a(3) =34412915a(4) =85151401909
External references
- oeis: A193225