Number of nXn 0..1 arrays with every element unequal to 0, 1, 3 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A318344
Number of nXn 0..1 arrays with every element unequal to 0, 1, 3 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =3a(2) =6a(3) =14a(4) =62a(5) =345a(6) =2429a(7) =27666a(8) =463096a(9) =11104161a(10) =397131064a(11) =21043166129
External references
- oeis: A318344