Number of nX4 0..1 arrays with no element less than a strict majority of its horizontal, vertical and antidiagonal neighbors.
A231540
Number of nX4 0..1 arrays with no element less than a strict majority of its horizontal, vertical and antidiagonal neighbors.
Terms
- a(0) =7a(1) =57a(2) =589a(3) =5235a(4) =46122a(5) =417298a(6) =3763223a(7) =33812753a(8) =304137386a(9) =2736503160a(10) =24617186785a(11) =221452701097
External references
- oeis: A231540