Number of n X n 0..1 arrays with every element equal to 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero.
A297971
Number of n X n 0..1 arrays with every element equal to 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =1a(2) =8a(3) =109a(4) =18037a(5) =5902043a(6) =7833283900
External references
- oeis: A297971