Number of n X n 0..1 arrays with every element equal to 0, 1, 2, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.
A299676
Number of n X n 0..1 arrays with every element equal to 0, 1, 2, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =7a(2) =20a(3) =211a(4) =13369a(5) =1247427a(6) =346275749a(7) =289785610230
External references
- oeis: A299676