Hey guys, so you remember VQC mentioning the cell in (e,1) where a[t] = c*BigN? He mentioned it >>6774 here. PMA called it nb on Discord just now, if that helps. I just discovered that we can actually calculate this cell straight from c, rather than going back and forth between cells. In every case, the x of that cell = c-d.
c=1441, d=37
c*bigN=985644, which first appears in (e,1) as a at (72,1,702) = {72,1,987048,1404,985644,988454}, f=-1974025
1441-37=1404
c=4031, d=63
c*bigN=7872543, which first appears in (e,1) as a at (62,1,1984) = {62,1,7876511,3968,7872543,7880481}, f=-15752961
4031-63=3968
c=4601, d=67
c*bigN=10278634, which first appears in (e,1) as a at (112,1,2267) = {112,1,10283168,4534,10278634,10287704}, f=-20566225
4601-67=4534