mersenneforum.org - Aliquot sequence reservations

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- - Aliquot sequence reservations (https://www.mersenneforum.org/showthread.php?t=11588)

Releasing 431060

Taking 674912

Releasing 525426 (C126 with ~1/3rd ECM)
Taking 735342

I have few old cores and I don't know what to do with them. Not enough mem for P-1, so I looked for some low-hanging fruits on aliquots.

Reserving 991080.

Releasing 96522, no ecm done

Dropping 397962 (2^3 * 5 * C142, normal 7k@3e6 ECM)

Interestingly-shaped graph - it stayed around 95 digits for a lot of iterations, it spent quite a while divisible by 2^9*11*31, even now it doesn't have a driver.

Releasing 92916 and 601608

Reserving 292944

[QUOTE=wombatman;365810]Releasing

[CODE]94146
...[/CODE][/QUOTE]
I will take 94146 for few steps more. It seems that the downdriver is not totally gone, it may come back.. :razz:

Releasing 735342 with an ECM'd C120
Taking 928344

Releasing 915684 & 872220 - Aliqueit full ECM performed on both. It took forever to get a solid driver (2^2 * 7) for both of these. I added 2042 & 4228 lines, respectively...

Reserving [strike]968484 &[/strike] 848920

[QUOTE=LaurV;366307]I will take 94146 for few steps more. It seems that the downdriver is not totally gone, it may come back.. :razz:[/QUOTE]
Big adventure! Aliquots won't stop amazing us! I put ~500 terms to it. As I assumed, it continued to go down in steps, even with 2^2 as guide, it got and lost the 3 once for each step, and even regained the downdriver for a while, but it was short living, it got a prime in the tail and switched immediately to 2^6*127. This was still ok, as it is a very slow-growing driver, as long as it does not get a 3. Unfortunately it got a 3 at index 1308, and started taking off. With this driver, the 3s can easily come and go. I will continue to work it until it gets over the former top, then, if it gets uglier, I will throw it back to the pool.

edit P.S. Since I am writing this post it lost the 3, hehe, it is getting slow again. The 2^6*127 driver is intriguing because I have not work one, or studied one. Most probably it can't get lost until I succeed to square the 127, can it? What chances are for that?