>So now we know that n(n-1)a*a MUST exist in column 0
>as d
Here's a test case using c559, 13*43. I would post more test cases but this is a little long. This is every cell in which d equals the (an)(a(n-1)) we're looking for. Can anyone spot a cell that we can calculate from our knowns?
(30,5,6) = {30:5:23:10:13:43}, f = -17, c = 559
BigN cell: (30,257,12) = {30:257:23:22:1:559}, f = -17
Cell in (e,1) where x=|f|+1: (30,1,10) = {30:1:195:18:177:215}, f = -361
c*bigN=143663, which first appears in (e,1) as a at (30,1,268) = {30,1,144199,536,143663,144737}, f=-288369
(an)(a(n-1)) = 3380
The cell in (0,n) where d=(an)(a(n-1)):
(0,2852721,1690) = {0:2852721:3380:3378:2:5712200}, f=-6761, c=11424400
(0,1424672,1689) = {0:1424672:3380:3376:4:2856100}, f=-6761, c=11424400
(0,710649,1687) = {0:710649:3380:3372:8:1428050}, f=-6761, c=11424400
(0,567845,1686) = {0:567845:3380:3370:10:1142440}, f=-6761, c=11424400
(0,282240,1681) = {0:282240:3380:3360:20:571220}, f=-6761, c=11424400
(0,216333,1678) = {0:216333:3380:3354:26:439400}, f=-6761, c=11424400
(0,139445,1671) = {0:139445:3380:3340:40:285610}, f=-6761, c=11424400
(0,110889,1666) = {0:110889:3380:3330:50:228488}, f=-6761, c=11424400
(0,106496,1665) = {0:106496:3380:3328:52:219700}, f=-6761, c=11424400
(0,53792,1641) = {0:53792:3380:3280:100:114244}, f=-6761, c=11424400
(0,51597,1639) = {0:51597:3380:3276:104:109850}, f=-6761, c=11424400
(0,40625,1626) = {0:40625:3380:3250:130:87880}, f=-6761, c=11424400
(0,25281,1591) = {0:25281:3380:3180:200:57122}, f=-6761, c=11424400
(0,18720,1561) = {0:18720:3380:3120:260:43940}, f=-6761, c=11424400
(0,13689,1522) = {0:13689:3380:3042:338:33800}, f=-6761, c=11424400
(0,7865,1431) = {0:7865:3380:2860:520:21970}, f=-6761, c=11424400
(0,5733,1366) = {0:5733:3380:2730:650:17576}, f=-6761, c=11424400
(0,5408,1353) = {0:5408:3380:2704:676:16900}, f=-6761, c=11424400
(0,1664,1041) = {0:1664:3380:2080:1300:8788}, f=-6761, c=11424400
(0,1521,1015) = {0:1521:3380:2028:1352:8450}, f=-6761, c=11424400
(0,845,846) = {0:845:3380:1690:1690:6760}, f=-6761, c=11424400
(0,117,391) = {0:117:3380:780:2600:4394}, f=-6761, c=11424400