Number of n X 2 0..3 arrays with new values 0..3 introduced in row major order and no element equal to more than two of its immediate leftward or upward or left-upward diagonal neighbors.
A208195
Number of n X 2 0..3 arrays with new values 0..3 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) =14a(2) =178a(3) =2653a(4) =41272a(5) =648569a(6) =10215440a(7) =160984657a(8) =2537249104a(9) =39990174809a(10) =630298266416
External references
- oeis: A208195