Number of (n+2)X(7+2) 0..3 arrays with every 3X3 subblock row and column sum equal to 0 3 5 6 or 8 and every 3X3 diagonal and antidiagonal sum not equal to 0 3 5 6 or 8.
A252333
Number of (n+2)X(7+2) 0..3 arrays with every 3X3 subblock row and column sum equal to 0 3 5 6 or 8 and every 3X3 diagonal and antidiagonal sum not equal to 0 3 5 6 or 8.
Terms
- a(0) =72899a(1) =89296a(2) =503439a(3) =1835652a(4) =13814611a(5) =76990025a(6) =287805377a(7) =2229362249a(8) =12829378336a(9) =47542221588a(10) =366440142125
External references
- oeis: A252333