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Forum: Aliquot Sequences 2016-12-19, 04:45
Replies: 2,911
Views: 171,961
Posted By mshelikoff
Oooo...how is it visible? Can mere mortals see...

Oooo...how is it visible? Can mere mortals see it? Who changes the name? Am I asking too many questions? There should be a huge graph of the sequence with a label every time there was a change in the...
Forum: Aliquot Sequences 2016-12-19, 04:29
Replies: 2,911
Views: 171,961
Posted By mshelikoff
Is there an archive of the name changes to this...

Is there an archive of the name changes to this thread and when they took place?
Forum: Aliquot Sequences 2016-12-17, 21:02
Replies: 2,911
Views: 171,961
Posted By mshelikoff
1534315345

1534315345
Forum: Aliquot Sequences 2016-09-14, 12:08
Replies: 2,911
Views: 171,961
Posted By mshelikoff
314718 just passed i15,000. Even though it's...

314718 just passed i15,000.

Even though it's a bit (but not extremely) unlikely that the sequence will terminate soon and it's very unlikely that the sequence will catch itself on the way down to...
Forum: Aliquot Sequences 2016-09-12, 18:46
Replies: 2,911
Views: 171,961
Posted By mshelikoff
I don't have a prediction or estimate. But I...

I don't have a prediction or estimate.

But I feel that a YouTube video from The Sound of Music (1965) of Peggy Wood as Mother Abbess, dubbed by Margery McKay, singing "Climb Ev'ry Mountain" is...
Forum: Aliquot Sequences 2016-09-11, 21:37
Replies: 2,911
Views: 171,961
Posted By mshelikoff
If the number of sequence transitions from above...

If the number of sequence transitions from above to below 10^7 (instead of the numbers below 10^7) were considered in the 4788 genealogy compared to all such transitions then wouldn't that roughly...
Forum: Aliquot Sequences 2016-09-11, 20:30
Replies: 2,911
Views: 171,961
Posted By mshelikoff
It looks like it picked up a 2^2·7 at the 16...

It looks like it picked up a 2^2·7 at the 16 digit 1987170707261684 , found the downdriver later, and then picked up another 2^2·7 at 20 digits and this one isn't leaving.
Forum: Aliquot Sequences 2016-09-11, 18:14
Replies: 2,911
Views: 171,961
Posted By mshelikoff
I'm still writing about this topic after I wrote...

I'm still writing about this topic after I wrote "nevermind," so I apologize for writing "nevermind" because obviously I'm still thinking about it, and I'm fairly new to the forum and might be making...
Forum: Aliquot Sequences 2016-09-11, 02:24
Replies: 2,911
Views: 171,961
Posted By mshelikoff
Nevermind.

Nevermind.
Forum: Aliquot Sequences 2016-09-10, 23:21
Replies: 2,911
Views: 171,961
Posted By mshelikoff
The link in my last post included a link to the...

The link in my last post included a link to the 4788 stays-under-a-million genealogy at http://www.rieselprime.de/Others/4788_1000000.png .
Forum: Aliquot Sequences 2016-09-10, 21:44
Replies: 2,911
Views: 171,961
Posted By mshelikoff
:drama: Is the number of values less than a...

:drama:

Is the number of values less than a million available that are known to be attached to the 4788 genealogy tree? I see from http://www.mersenneforum.org/showpost.php?p=286377&postcount=65...
Forum: Aliquot Sequences 2016-08-30, 04:00
Replies: 107
Views: 19,127
Posted By mshelikoff
Congratulations! I took the liberty of spreading...

Congratulations! I took the liberty of spreading the word a little at https://www.reddit.com/r/math/comments/50900g/the_number_of_known_sociable_cycles_jumped_from/ .

From...
Forum: Aliquot Sequences 2015-05-15, 07:40
Replies: 1
Views: 1,147
Posted By mshelikoff
Another Wolfram Alpha toy for unitary aliquot sequences

NestWhileList[Fold[#1 #2& , #[[1]]^#[[2]]+1& /@ Factor[#][[1]]]-#& , 1482, Unequal[##,1] && Unequal[##]&, {1,Infinity}]

can be used at Wolfram Alpha to generate the unitary aliquot sequence for...
Forum: Aliquot Sequences 2014-12-11, 06:33
Replies: 1
Views: 724
Posted By mshelikoff
Immediate antecedents for sequences terminating in a cycle

This might be a newbie question ,but is there a list (or lists) of the numbers known to immediately precede a cyclical termination in an aliquot sequence? I think the list of known numbers that do...
Forum: Aliquot Sequences 2014-12-11, 04:37
Replies: 1
Views: 1,147
Posted By mshelikoff
A Wolfram Alpha widget toy

Hi aliquot sequence folks.

Yesterday I began to use:

NestWhileList[DivisorSigma[1,#] - #&, 138, Unequal[##,1] && Unequal[##]&, {1,Infinity}]

as WolframAlpha/Mathematica code that generates...
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