Number of nX4 0..2 arrays with new values 0..2 introduced in row major order and no element equal to any knight-move neighbor (colorings ignoring permutations of colors).
A208430
Number of nX4 0..2 arrays with new values 0..2 introduced in row major order and no element equal to any knight-move neighbor (colorings ignoring permutations of colors).
Terms
- a(0) =14a(1) =216a(2) =339a(3) =1292a(4) =6416a(5) =32813a(6) =169899a(7) =885540a(8) =4617014a(9) =24074947a(10) =125562891a(11) =654899967a(12) =3415879346a(13) =17817085346a(14) =92933586111a(15) =484741782266
External references
- oeis: A208430