Number of (n+2)X(6+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 1 3 6 or 7.

A252319

Number of (n+2)X(6+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 1 3 6 or 7.

Terms

    a(0) =28883a(1) =10448a(2) =62915a(3) =409636a(4) =2670867a(5) =17562749a(6) =115183853a(7) =755608304a(8) =4967205339a(9) =32613907484a(10) =214022772184

External references