Number of n X n 0..1 arrays with every element unequal to 0, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.
A304670
Number of n X n 0..1 arrays with every element unequal to 0, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =4a(2) =13a(3) =56a(4) =897a(5) =20932a(6) =930123a(7) =73484449a(8) =11082127004
External references
- oeis: A304670