One of those Sync numbers, 429, has a very nice, recent, workup that I felt was worth a chart.
04/18/2025,707,365 | 10/04/2024,685,429 | 08/26/2024,545,365 | 03/21/2022,365,548 | 09/30/2015,593,365
04/19/2025,891,636 | 10/05/2024,507,678 | 08/27/2024,842,899 | 03/22/2022,728,216 | 10/01/2015,107,058
04/20/2025,895,412 | 10/06/2024,515,350 | 08/28/2024,423,109 | 03/23/2022,059,648 | 10/02/2015,692,250
04/21/2025,412,706 | 10/07/2024,896,265 | 08/29/2024,516,431 | 03/24/2022,341,220 | 10/03/2015,991,759
04/22/2025,315,249 | 10/08/2024,565,789 | 08/30/2024,769,176 | 03/25/2022,299,191 | 10/04/2015,863,816
04/23/2025,726,069 | 10/09/2024,041,508 | 08/31/2024,670,226 | 03/26/2022,495,467 | 10/05/2015,936,282
04/24/2025,810,938 | 10/10/2024,849,521 | 09/01/2024,922,090 | 03/27/2022,911,552 | 10/06/2015,300,113
04/25/2025,495,143 | 10/11/2024,270,988 | 09/02/2024,266,194 | 03/28/2022,480,393 | 10/07/2015,040,527
04/26/2025,823,298 | 10/12/2024,121,470 | 09/03/2024,961,640 | 03/29/2022,962,527 | 10/08/2015,431,316
04/27/2025,368,159 | 10/13/2024,753,510 | 09/04/2024,887,158 | 03/30/2022,323,301 | 10/09/2015,440,645
04/28/2025,604,326 | 10/14/2024,021,137 | 09/05/2024,794,947 | 03/31/2022,535,420 | 10/10/2015,995,844
04/29/2025,918,602 | 10/15/2024,189,082 | 09/06/2024,955,896 | 04/01/2022,142,786 | 10/11/2015,879,761
04/30/2025,805,770 | 10/16/2024,611,767 | 09/07/2024,106,908 | 04/02/2022,719,742 | 10/12/2015,672,519
05/01/2025,510,356 | 10/17/2024,187,588 | 09/08/2024,977,589 | 04/03/2022,497,640 | 10/13/2015,797,200
05/02/2025,061,091 | 10/18/2024,828,289 | 09/09/2024,526,570 | 04/04/2022,391,515 | 10/14/2015,931,763
05/03/2025,704,749 | 10/19/2024,426,075 | 09/10/2024,455,498 | 04/05/2022,169,304 | 10/15/2015,750,489
05/04/2025,520,874 | 10/20/2024,430,037 | 09/11/2024,623,383 | 04/06/2022,806,698 | 10/16/2015,998,851
05/05/2025,354,479 | 10/21/2024,909,083 | 09/12/2024,560,398 | 04/07/2022,014,444 | 10/17/2015,868,941
05/06/2025,758,037 | 10/22/2024,816,139 | 09/13/2024,645,826 | 04/08/2022,316,393 | 10/18/2015,492,060
05/07/2025,424,103 | 10/23/2024,503,335 | 09/14/2024,806,657 | 04/09/2022,894,956 | 10/19/2015,168,602
05/08/2025,764,112 | 10/24/2024,423,380 | 09/15/2024,939,846 | 04/10/2022,037,470 | 10/20/2015,123,128
05/09/2025,???,??? | 10/25/2024,902,429 | 09/16/2024,010,429 | 04/11/2022,429,134 | 10/21/2015,429,511
I fudged a little on that chart. The second column is actually 429 repeating straight rather than 365/439, but that has historically been a hallmark of Sync pairs (along with the pairs being reversed at the same number of days apart), so I threw it in the mix.