Number of (n+2)X(5+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 1 or 4.
A252290
Number of (n+2)X(5+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 1 or 4.
Terms
- a(0) =14042a(1) =20213a(2) =59767a(3) =254401a(4) =1227461a(5) =6319654a(6) =33076723a(7) =173978395a(8) =918980293a(9) =4858189985a(10) =25672484797a(11) =135685650662a(12) =717352972096
External references
- oeis: A252290