Number of n X n 0..2 arrays with new values 0..2 introduced in row major order and no element equal to more than two of its immediate leftward or upward or left-upward diagonal neighbors.
A208315
Number of n X n 0..2 arrays with new values 0..2 introduced in row major order and no element equal to more than two of its immediate leftward or upward or left-upward diagonal neighbors.
Terms
- a(0) =1a(1) =13a(2) =2852a(3) =5269968a(4) =82063614224
External references
- oeis: A208315