Number of (n+2)X(5+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 5 6 or 7.
A252216
Number of (n+2)X(5+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 5 6 or 7.
Terms
- a(0) =5011a(1) =6674a(2) =35674a(3) =188866a(4) =984604a(5) =5218112a(6) =27565870a(7) =145417326a(8) =769096658a(9) =4065302226a(10) =21466258470a(11) =113390920642a(12) =599189709130
External references
- oeis: A252216