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-   -   Aliquot sequences that start on the integer powers n^i (https://www.mersenneforum.org/showthread.php?t=23612)

EdH 2020-10-31 16:08

Since there wasn't other interest, I'm working both ends of the orange area toward the middle now for base 162, so I guess that whole section can be attributed to me at the next update. They won't all be green yet, but some have already made the change.

RichD 2020-11-01 01:03

I am performing preliminary work on Tables 220 and 284.

It appears 284^3 has merged.

EdH 2020-11-01 02:24

[QUOTE=RichD;561738]. . .
It appears 284^3 has merged.[/QUOTE]
It does:
[code]
284^3:i701 merges with 21432:i50
[/code]

garambois 2020-11-01 09:53

I'm really sorry.
It's totally impossible to do the update !
Already last week, it had been very laborious to scan factordb : it was very long compared to usual !
But today, I can't even scan base 3, it blocks for a while. It's very long for each exponent.

I don't know what's going on ?

This does not prevent us from continuing our calculations.
But we have to watch the posts since post #640 of the last update to be sure not to do the same calculations as someone else.

Thank you all for your help !
I will take into account all your requests in the next update. But this next update will only be partial if the problem remains !

unconnected 2020-11-01 10:03

Looks like someone flooded factordb with thousands of small composites.
[url]http://factordb.com/stat_1.php[/url]

garambois 2020-11-01 10:08

[QUOTE=RichD;561738]I am performing preliminary work on Tables 220 and 284.
[/QUOTE]


Perfect, it's a job that was on hold.
At least we will have two bases which are amicable numbers. I don't think anything special is going to happen. But we have to check to be sure !

garambois 2020-11-01 10:11

[QUOTE=unconnected;561779]Looks like someone flooded factordb with thousands of small composites.
[URL]http://factordb.com/stat_1.php[/URL][/QUOTE]


I don't know what to do ?
Should I try again today ?
Last week, there was a similar problem ?

EdH 2020-11-01 13:28

There is work being done on the db and all sequences will rebuild when accessed at some point, so everything will be quite slow.

On a bright note, Syd has informed me that he has fixed the three broken sequences and all the base 72 issues, so once we are able to access it again in a reasonable way, you should be able to add the base 72 table. I haven't been able to verify anything and will be out today, but will check either later or tomorrow.

richs 2020-11-01 14:07

[QUOTE=richs;559060]Taking 439^40 at i39.[/QUOTE]

439^40 is now at i554 (added 515 lines) and a C122 level with a 2^2 * 5 * 7 driver, so I will drop this reservation. The remaining C116 term is well ecm'ed and is ready for nfs.

Taking 439^42 at i15 and 439^44 at i2.

garambois 2020-11-01 15:07

[QUOTE=EdH;561793]There is work being done on the db and all sequences will rebuild when accessed at some point, so everything will be quite slow.

On a bright note, Syd has informed me that he has fixed the three broken sequences and all the base 72 issues, so once we are able to access it again in a reasonable way, you should be able to add the base 72 table. I haven't been able to verify anything and will be out today, but will check either later or tomorrow.[/QUOTE]


[B]Thank you very much for this very very very good news !!![/B]
[B]A lot of thanks to Syd !!![/B]

I'm just going to do a quick update for the few bases for which you reported changes to me : bases 2, 3, 20, 21, 23, 162, 439, 496.

For the addition of bases 72, 220 and 284, I will wait to hear from you...

:smile:

RichD 2020-11-01 15:55

I did some work on base 29. Bases 220 and 284 will be ready at the next update.


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