Number of 4Xn 0..2 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.
A280676
Number of 4Xn 0..2 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =14a(1) =612a(2) =12484a(3) =310365a(4) =7533245a(5) =183331502a(6) =4460317695a(7) =108520231044
External references
- oeis: A280676