mersenneforum.org

mersenneforum.org (https://www.mersenneforum.org/index.php)
-   Aliquot Sequences (https://www.mersenneforum.org/forumdisplay.php?f=90)
-   -   Questions about Aliquot k-Cycles research (https://www.mersenneforum.org/showthread.php?t=24268)

garambois 2019-04-07 09:41

Questions about Aliquot k-Cycles research
 
I have 3 questions about Aliquot k-Cycles research ?

1) Has anyone ever run calculations with the algorithm given here to search Aliquot 3-Cycles ?
[URL="https://www.mersenneforum.org/showthread.php?t=17726"]https://www.mersenneforum.org/showthread.php?t=17726[/URL]
And if so, for which values of v and u ? (reminder : today, we only know 51 different v such that p=2^v-1 is a prime, see Mersenne's prime numbers).
I wouldn't want to do calculations already done by other people !

2) Does anyone know similar Algebraic Rules for Aliquot 7-Cycles ?

3) Does anyone know where to find Algebraic Rules for Aliquot k-Cycles, in the general case for k=10, 11, 13 and more, and if these rules exist and have been found ?

sweety439 2021-08-02 03:50

Problem: Are there any sociable number cycles such that not all numbers have same parity?


All times are UTC. The time now is 23:49.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.