Number of (n+2) X (6+2) 0..3 arrays with every 3 X 3 subblock row, column, diagonal and antidiagonal sum not equal to 2 3 4 6 or 7.
A252267
Number of (n+2) X (6+2) 0..3 arrays with every 3 X 3 subblock row, column, diagonal and antidiagonal sum not equal to 2 3 4 6 or 7.
Terms
- a(0) =2900a(1) =17008a(2) =122506a(3) =800946a(4) =5217924a(5) =34351677a(6) =225314758a(7) =1478226653a(8) =9717153148a(9) =63795462094a(10) =418649646607
External references
- oeis: A252267