mersenneforum.org Aliquot sequences that start on the integer powers n^i
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 2020-10-31, 16:08 #650 EdH     "Ed Hall" Dec 2009 Adirondack Mtns 7×577 Posts 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.
 2020-11-01, 01:03 #651 RichD     Sep 2008 Kansas 3,449 Posts I am performing preliminary work on Tables 220 and 284. It appears 284^3 has merged.
2020-11-01, 02:24   #652
EdH

"Ed Hall"
Dec 2009

7·577 Posts

Quote:
 Originally Posted by RichD . . . It appears 284^3 has merged.
It does:
Code:
284^3:i701 merges with 21432:i50

 2020-11-01, 09:53 #653 garambois     "Garambois Jean-Luc" Oct 2011 France 68110 Posts 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 ! Last fiddled with by garambois on 2020-11-01 at 10:01 Reason: additional clarification
 2020-11-01, 10:03 #654 unconnected     May 2009 Russia, Moscow 2,659 Posts Looks like someone flooded factordb with thousands of small composites. http://factordb.com/stat_1.php
2020-11-01, 10:08   #655
garambois

"Garambois Jean-Luc"
Oct 2011
France

3·227 Posts

Quote:
 Originally Posted by RichD I am performing preliminary work on Tables 220 and 284.

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 !

2020-11-01, 10:11   #656
garambois

"Garambois Jean-Luc"
Oct 2011
France

3×227 Posts

Quote:
 Originally Posted by unconnected Looks like someone flooded factordb with thousands of small composites. http://factordb.com/stat_1.php

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

 2020-11-01, 13:28 #657 EdH     "Ed Hall" Dec 2009 Adirondack Mtns 7×577 Posts 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.
2020-11-01, 14:07   #658
richs

"Rich"
Aug 2002
Benicia, California

1,367 Posts

Quote:
 Originally Posted by richs Taking 439^40 at i39.
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.

2020-11-01, 15:07   #659
garambois

"Garambois Jean-Luc"
Oct 2011
France

68110 Posts

Quote:
 Originally Posted by EdH 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.

Thank you very much for this very very very good news !!!
A lot of thanks to Syd !!!

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...

 2020-11-01, 15:55 #660 RichD     Sep 2008 Kansas 65718 Posts I did some work on base 29. Bases 220 and 284 will be ready at the next update.

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