Number of n X n 0..1 arrays with every element unequal to 0, 1, 2 or 5 king-move adjacent elements, with upper left element zero.
A303955
Number of n X n 0..1 arrays with every element unequal to 0, 1, 2 or 5 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =4a(2) =11a(3) =61a(4) =480a(5) =4645a(6) =44492a(7) =702361a(8) =14109468a(9) =304650192a(10) =7364610974a(11) =278434000222
External references
- oeis: A303955