Number of (n+2)X(2+2) 0..1 arrays with no 3x3 subblock diagonal sum 1 and no antidiagonal sum 1 and no row sum 0 and no column sum 0.

A255777

Number of (n+2)X(2+2) 0..1 arrays with no 3x3 subblock diagonal sum 1 and no antidiagonal sum 1 and no row sum 0 and no column sum 0.

Terms

    a(0) =436a(1) =1743a(2) =8672a(3) =37281a(4) =161602a(5) =726684a(6) =3204754a(7) =14164510a(8) =62954158a(9) =278903301a(10) =1235840478a(11) =5481107523a(12) =24297608428a(13) =107711449934a(14) =477559213871

External references