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

A252084

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

Terms

    a(0) =687a(1) =2595a(2) =11186a(3) =47266a(4) =199064a(5) =846257a(6) =3603209a(7) =15363231a(8) =65536806a(9) =279433103a(10) =1191679629a(11) =5083746174a(12) =21686819544a(13) =92508524702a(14) =394621790278

External references