Number of nX3 0..1 arrays with new values 0..1 introduced in row major order and no element equal to more than two of its immediate leftward or upward or right-upward antidiagonal neighbors.
A208704
Number of nX3 0..1 arrays with new values 0..1 introduced in row major order and no element equal to more than two of its immediate leftward or upward or right-upward antidiagonal neighbors.
Terms
- a(0) =4a(1) =28a(2) =196a(3) =1372a(4) =9604a(5) =67228a(6) =470596a(7) =3294172a(8) =23059204a(9) =161414428a(10) =1129900996a(11) =7909306972a(12) =55365148804a(13) =387556041628
External references
- oeis: A208704