Number of nX3 0..1 arrays with no 1 equal to more than one of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element.
A282880
Number of nX3 0..1 arrays with no 1 equal to more than one of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element.
Terms
- a(0) =1a(1) =8a(2) =74a(3) =430a(4) =2426a(5) =13062a(6) =67676a(7) =342972a(8) =1707597a(9) =8384136a(10) =40716024a(11) =195950228a(12) =935955604a(13) =4442192472a(14) =20968437076a(15) =98509310972a(16) =460879910601
External references
- oeis: A282880