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 two of its immediate leftward or upward or left-upward diagonal neighbors.
A208317
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 two of its immediate leftward or upward or left-upward diagonal neighbors.
Terms
- a(0) =5a(1) =113a(2) =2852a(3) =71956a(4) =1815496a(5) =45806048a(6) =1155714080a(7) =29159359552a(8) =735708134656
External references
- oeis: A208317