Number of n X 2 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.
A208316
Number of n X 2 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) =2a(1) =13a(2) =113a(3) =982a(4) =8534a(5) =74164a(6) =644516a(7) =5601112a(8) =48675992a(9) =423014608a(10) =3676172816a(11) =31947470176a(12) =277636798304
External references
- oeis: A208316