this post was submitted on 07 May 2024
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[–] mozz@mbin.grits.dev 2 points 10 months ago* (last edited 10 months ago)

I think that's the overlap between the dense region of PINs that start with 11, 12, or 13 (similar to the dense regions that start with 21, 22, 23, 31, etc), and the dense square region of month+day dates.