Number of nX4 0..2 arrays with no element equal to exactly one horizontal or vertical neighbor, with new values 0..2 introduced in row major order.
A241075
Number of nX4 0..2 arrays with no element equal to exactly one horizontal or vertical neighbor, with new values 0..2 introduced in row major order.
Terms
- a(0) =4a(1) =39a(2) =386a(3) =4191a(4) =47974a(5) =572023a(6) =6996566a(7) =86779948a(8) =1085281623a(9) =13635536887a(10) =171768785341
External references
- oeis: A241075