Number of n X 4 0..3 arrays with new values 0..3 introduced in row major order and no element equal to any knight-move neighbor (colorings ignoring permutations of colors).
A208349
Number of n X 4 0..3 arrays with new values 0..3 introduced in row major order and no element equal to any knight-move neighbor (colorings ignoring permutations of colors).
Terms
- a(0) =15a(1) =868a(2) =12625a(3) =230387a(4) =4773885a(5) =103672036a(6) =2280287753a(7) =50481169071
External references
- oeis: A208349