Number of (n+1) X 4 binary arrays with no 2 X 2 subblock determinant equal to any horizontal or vertical neighbor 2 X 2 subblock determinant.
A185461
Number of (n+1) X 4 binary arrays with no 2 X 2 subblock determinant equal to any horizontal or vertical neighbor 2 X 2 subblock determinant.
Terms
- a(0) =92a(1) =240a(2) =866a(3) =2766a(4) =8762a(5) =27102a(6) =83688a(7) =258056a(8) =795746a(9) =2453840a(10) =7566872a(11) =23333794a(12) =71953944a(13) =221882868a(14) =684215602a(15) =2109901528a(16) =6506259672a(17) =20063218306a(18) =61868531104a(19) =190782709036a(20) =588312691858
External references
- oeis: A185461