Number of nXn 0..1 arrays with every element unequal to 1, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A318092
Number of nXn 0..1 arrays with every element unequal to 1, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =5a(2) =45a(3) =1563a(4) =73788a(5) =8985801a(6) =2154127036
External references
- oeis: A318092