Number of n X n 0..1 arrays with the number of 1's horizontally, antidiagonally or vertically adjacent to some 0 one less than the number of 0's adjacent to some 1.
A285023
Number of n X n 0..1 arrays with the number of 1's horizontally, antidiagonally or vertically adjacent to some 0 one less than the number of 0's adjacent to some 1.
Terms
- a(0) =0a(1) =2a(2) =97a(3) =6460a(4) =3708321a(5) =5075612300
External references
- oeis: A285023