Number of (n+2)X(6+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 4 6 or 7.

A252455

Number of (n+2)X(6+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 4 6 or 7.

Terms

    a(0) =3938a(1) =20242a(2) =134907a(3) =863351a(4) =5596619a(5) =36760486a(6) =240708592a(7) =1577703429a(8) =10367458379a(9) =68072122171a(10) =446783070387

External references