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Forum: Riesel Prime Data Collecting (k*2^n-1) 2008-12-04, 10:52
Replies: 26
Views: 13,425
Posted By Thomas11
That would be indeed a quite interesting project!...

That would be indeed a quite interesting project!
Taking k=37850187375 (for which I would expect at least 160 primes for n<1M) as an upper bound, one could start a search similar to the RieselSieve...
Forum: Riesel Prime Data Collecting (k*2^n-1) 2008-12-03, 13:21
Replies: 26
Views: 13,425
Posted By Thomas11
As far as I know, Phil Carmody and Robert Smith...

As far as I know, Phil Carmody and Robert Smith were looking such "high density" k-values quite a while ago.
Unfortunately, the information on Phil's page isn't accessible anymore:
...
Forum: Riesel Prime Data Collecting (k*2^n-1) 2008-12-02, 14:37
Replies: 26
Views: 13,425
Posted By Thomas11
Back in 2003 -- when the "old" 15k search was at...

Back in 2003 -- when the "old" 15k search was at it's high time -- the entrance level for the Top5000 database was at about n=110000. Since the goal of this project was to find as many primes as...
Forum: Riesel Prime Data Collecting (k*2^n-1) 2008-12-02, 14:09
Replies: 26
Views: 13,425
Posted By Thomas11
Here are the primes for another 13 high-weight k,...

Here are the primes for another 13 high-weight k, all tested for n=0-10k:

k: n's prime
10956100155: 10, 12, 13, 14, 17, 18, 21, 22, 26, 30, 34, 43, 44, 49, 51, 54,
73, 76,...
Forum: Riesel Prime Data Collecting (k*2^n-1) 2008-12-02, 13:16
Replies: 26
Views: 13,425
Posted By Thomas11
Here are the primes for three high-weight k using...

Here are the primes for three high-weight k using Gary's notation. I noticed just now that one of them (k=20887630335) has already been tested by amphoria up to n=88k. Please note the prime for n=1...
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