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-   -   Sequence terminations and merges (https://www.mersenneforum.org/showthread.php?t=11837)

Batalov 2017-11-21 06:20

1934442:[URL="http://factordb.com/sequences.php?se=1&aq=1934442&action=range&fr=2190&to=2194"]i2194[/URL] (after reaching 100d and coming down) merges with 143676:[URL="http://factordb.com/sequences.php?se=1&aq=143676&action=range&fr=0&to=3"]i3
[/URL]

yoyo 2017-11-22 18:11

1952670 terminated at i1361.

ChristianB 2017-11-23 21:13

The seq(s) 1974448 seem(s) to have merged with 1320480

1320480:1340 = 1974448:12

Which sequence do you delete in this case?

Dubslow 2017-11-23 23:14

Always remove the larger sequence (1974448)

fivemack 2017-11-24 07:47

1868148 terminates

ChristianB 2017-11-24 12:08

The seq(s) 1741632 seem(s) to have merged with 1632

Dubslows code automatically deletes the larger seq when a merge is detected.

(1741632:3912 = 1632:37; I have an auto-reporter meaning that I don't necessarily notice merges as they happen)

LaurV 2017-11-25 10:12

That's the right way.
In my DB however, I keep both the "smallest" and the "longest" sequence that reach some composite. In case someone is looking for long sequences.

(my DB entries are [n, s, m, i, z, j, p1, a1, ...], where n is the number, s is its status, m is the smallest sequence reaching n at index i, z is the longest sequence reaching n at index j, and p^a are the factors, except the last (prime or unknown cofactor) - this way mergers are detected automatically, and the same composite is never factored two times)

yoyo 2017-11-30 18:45

1211160 terminated

Batalov 2017-12-01 06:01

1938060 terminates @ i4415

Batalov 2017-12-03 23:28

[URL="http://factordb.com/sequences.php?se=1&aq=1431248&action=last20"]1431248[/URL] merges with [URL="http://factordb.com/sequences.php?se=1&aq=20196&action=last20"]20196[/URL] @ ~ i2300

yoyo 2017-12-10 18:15

sequence 1052310 has terminated


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