Number of n X n symmetric 0..6 arrays with no element equal to the sum mod 7 of all its horizontal and vertical neighbors.
A193613
Number of n X n symmetric 0..6 arrays with no element equal to the sum mod 7 of all its horizontal and vertical neighbors.
Terms
- a(0) =6a(1) =216a(2) =46662a(3) =60466182a(4) =470185031232
External references
- oeis: A193613