Number of n X n 0..1 arrays with every element unequal to 0, 1, 3, 5 or 7 king-move adjacent elements, with upper left element zero.
A304927
Number of n X n 0..1 arrays with every element unequal to 0, 1, 3, 5 or 7 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =5a(2) =13a(3) =73a(4) =452a(5) =2653a(6) =15993a(7) =118024a(8) =920997a(9) =12184613a(10) =162877680a(11) =2507024025a(12) =36984184204a(13) =682363665419
External references
- oeis: A304927