Number of n X 3 0..2 arrays with new values 0..2 introduced in row major order and no element equal to more than one of its immediate leftward or upward or left-upward diagonal neighbors.
A208562
Number of n X 3 0..2 arrays with new values 0..2 introduced in row major order and no element equal to more than one of its immediate leftward or upward or left-upward diagonal neighbors.
Terms
- a(0) =5a(1) =68a(2) =1059a(3) =16608a(4) =260856a(5) =4098492a(6) =64398564a(7) =1011891888a(8) =15899856696a(9) =249834571632
External references
- oeis: A208562