Number of nX4 0..1 arrays with every element equal to 0, 1, 2, 3, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A301439
Number of nX4 0..1 arrays with every element equal to 0, 1, 2, 3, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =8a(1) =128a(2) =1708a(3) =23672a(4) =327848a(5) =4543028a(6) =62956480a(7) =872451104a(8) =12090455460a(9) =167549990744
External references
- oeis: A301439