Number of (n+2)X(6+2) 0..3 arrays with every 3X3 subblock row and column sum not equal to 0 3 5 6 or 8 and every 3X3 diagonal and antidiagonal sum equal to 0 3 5 6 or 8.
A252350
Number of (n+2)X(6+2) 0..3 arrays with every 3X3 subblock row and column sum not equal to 0 3 5 6 or 8 and every 3X3 diagonal and antidiagonal sum equal to 0 3 5 6 or 8.
Terms
- a(0) =7109a(1) =29159a(2) =111519a(3) =425816a(4) =2400740a(5) =11021412a(6) =49182987a(7) =274849809a(8) =1296591297a(9) =5991019950a(10) =32860137008a(11) =156858856774a(12) =738121931124
External references
- oeis: A252350