Any ideas what these green/white checkerboard patterns are used for?

[berkeman]

I've seen a printout like this at a printer at my work a couple times over the last year, and have not been able to figure out what they are used for. Does anybody know of a game or come crypto decode technique that uses such patterns?

the 1-page printout has seven of these 25x4 checkerboards on it, and most of the middle 21 columns have different numbers in the white squares... I'll paste the first few patterns in full-size and also include the full page as a thumbnail attachment...

Edit/Add -- Actually looking closer, every other checkerboard on the page is maybe repeated?

 

[berkeman]

Hmm, now I'm seeing a counting pattern from right to left. Still no idea what it's used for...

 

[fresh_42]

There are actually only 2 of those checkboards, the rest is repeating the first 2.
I removed all redundant information, i.e. constant columns.
Then there is a pattern: +32 on each square from checkboard 1 to checkboard 2 with 6 exceptions.

There are 32 teams in the NFL, and 4 divisions in AFC and NFC. 14 or 15 games a week, 2-4 teams on bye.

Maybe it is the overall game plan, or the schedule of one team.