Number of (n+2)X(4+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 1 2 or 4.

A252061

Number of (n+2)X(4+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 1 2 or 4.

Terms

    a(0) =843a(1) =2081a(2) =7463a(3) =30182a(4) =126936a(5) =539063a(6) =2292363a(7) =9773184a(8) =41735229a(9) =178241990a(10) =761260246a(11) =3251996084a(12) =13893485960a(13) =59357392808a(14) =253594313945

External references