Number of nXn 0..1 arrays with every element unequal to 0, 1, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.
A305643
Number of nXn 0..1 arrays with every element unequal to 0, 1, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =5a(2) =13a(3) =137a(4) =5547a(5) =355620a(6) =283691091a(7) =724085314967
External references
- oeis: A305643