Base 43 can be added at the next update. All expected terminating sequences are terminated and all remaining composites are greater than C78.

Starting initial work on base 47.

[QUOTE=garambois;571665]. . .
Did I understand correctly, you also have a C++ program that does this job faster ? This other program would also interest me.[/QUOTE]Here is the source for a C++ program. I'm afraid it's probably a bit "amateurish," and it has very little internal commenting, but it should compile on linux with:
[code]
g++ alimerge3.cpp -o alimerge3
[/code]and can then be invoked by:
[code]
./alimerge3 37 1 80
[/code]to run the entire base 37 table. Here's an example (wrapped in date calls to provide timing)*:
[code]
$ date;./alimerge3 37 1 80;date
Tue 16 Feb 2021 02:19:01 PM EST
Running base 37 from 1 through 80 . . .
37^6:i126 merges with 109920:i1275
37^8:i151 merges with 1632:i37
37^12:i1057 merges with 10824:i28
37^18:i1430 merges with 3366:i2
37^22:i519 merges with 1567300:i0
37^30:i1193 merges with 35856:i3
Tue 16 Feb 2021 02:22:27 PM EST [/code]That comes in at about 3:26 to run the entire base 37 table. That's about 206 vs. 1211 seconds for the Bash version.

* I tried to add an elapsed time function, but for some reason the timing was extremely inaccurate with the several methods I tried, so I left it out.

[QUOTE=RichD;571672]Base 43 can be added at the next update. All expected terminating sequences are terminated and all remaining composites are greater than C78.

Starting initial work on base 47.[/QUOTE]


OK, a lot of thanks !
The next update will be next weekend.

[QUOTE=EdH;571769]Here is the source for a C++ program.[/QUOTE]


OK, a lot of thanks !
I will test this program very quickly, but I can't get it to work at the moment, I don't know why yet ?

Otherwise, more generally, in three days, I will be on vacation.
I will try to do some data analysis.
Hopefully the large amount of new data accumulated allows us to formulate new small conjectures ... that is our goal !

:smile:

[QUOTE=garambois;571790]OK, a lot of thanks !
I will test this program very quickly, but I can't get it to work at the moment, I don't know why yet ?

Otherwise, more generally, in three days, I will be on vacation.
I will try to do some data analysis.
Hopefully the large amount of new data accumulated allows us to formulate new small conjectures ... that is our goal !

:smile:[/QUOTE]The source code I provided works under various linux machines here, compiling with no issues. It even compiles on my RPi machines. Let me know of any errors/warnings if any occur. I do now have a version that includes timing. If I add that one, I'll still leave the other.

The source should compile on Windows, as well, but it's been so long since I've worked with Windows, that I wouldn't be able to even try.

If there is some data in particular you'd like harvested, let me know and I can try to do that as well. I'm trying to keep a local up-to-date set of all the tables, at the ready for such work.

Have a Great Vacation!

Most of this vacation, I am going to work on the aliquot sequences. I have already started the preliminary work, I am writing and running programs.

But I would need a little help !

Would someone be able to calculate the following sequences, but only up to index 2, and of course, to enter the results on factordb :
(9699690 * 23)^20
(9699690 * 23 * 29 * 31)^14
(9699690 * 23 * 29 * 31 * 37)^14
Indeed, my computer is very busy and that would allow me to have the results already next weekend.
I still need more sequences, but the calculations will be shorter and I can handle them.

@Edwin : I'm on a track... Since I looked again at your "2-Stats.txt" file ([URL="https://www.mersenneforum.org/showthread.php?t=23612&page=31#339"]from here[/URL]), I got a new idea because of the fourth column.

But I have to do some more analysis to be sure that it is worth it that I expose you on this forum what I noticed. The calculations I am requesting above relate to this work.

I have queued up index 1 for both of the first two, but they will take a little while to finish. Do you need index 2 also fully factored or just reach index 2? The bulk of my machines are running a rather large job right now, so I am somewhat limited.

[QUOTE=EdH;571826]I have queued up index 1 for both of the first two, but they will take a little while to finish. Do you need index 2 also fully factored or just reach index 2? The bulk of my machines are running a rather large job right now, so I am somewhat limited.[/QUOTE]


I need just to reach index 2 but not to factor. Thank you very much Edwin !

[QUOTE=garambois;571840]I need just to reach index 2 but not to factor. Thank you very much Edwin ![/QUOTE]
The first two are at index 2. The third is in work.

Thank you very much Ed !

[QUOTE=garambois;571825]. . .
(9699690 * 23 * 29 * 31 * 37)^14
. . .[/QUOTE]Third one is at index 2, also.

Glad to be helpful. I'm looking forward to your findings.