What do we see via what we can not see?
Channels 1, 5, 9, 11 - see not one bit of these monitors.
Channels 2, 6, 10 - see only bottom right corners.
Channels 3 & 15 - see about one-half.
Channel 4, - see only bottom left corner.
Channels 8 & 12 - see only left side of monitors.
Channel 15 - see only top left corner.
Channels 7 & 11 - see all of these monitors.
Pattern(s)? Horizontally, vertically, diagonally?
Channel numbers?
EXAMPLE: 1, 5, 9, 13 = 1 5 9 3 (eliminate 1, rule of repetition)
Other examples? Connectins / Links / Bridges ?