Number of n X n 0..1 arrays with every element unequal to 0, 1, 3 or 8 king-move adjacent elements, with upper left element zero.
A304215
Number of n X n 0..1 arrays with every element unequal to 0, 1, 3 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =5a(2) =10a(3) =32a(4) =141a(5) =740a(6) =4263a(7) =33924a(8) =451917a(9) =7831308a(10) =167764973a(11) =5472669192a(12) =258530463654
External references
- oeis: A304215