Number of nX7 0..1 arrays with every element equal to 1, 2, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A303253
Number of nX7 0..1 arrays with every element equal to 1, 2, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =8a(1) =1934a(2) =21843a(3) =584333a(4) =13529019a(5) =322544617a(6) =7600681910a(7) =181926316054
External references
- oeis: A303253