Number of (n+1)X3 binary arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant.
A185480
Number of (n+1)X3 binary arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant.
Terms
- a(0) =30a(1) =148a(2) =684a(3) =3262a(4) =15402a(5) =73094a(6) =346356a(7) =1642258a(8) =7785218a(9) =36909314a(10) =174980330a(11) =829558720a(12) =3932814406a(13) =18644913662a(14) =88392840864a(15) =419057759044
External references
- oeis: A185480