20210610, 21:45  #463 
Sep 2010
Weston, Ontario
199_{10} Posts 
Since I am no longer using the final column of my Leyland prime indexing chart to indicate intervals, I've added a "P" therein for entries that I know are proven primes. That necessitated removing the "date approximate" for Selevich's L(8656,2929) and adding a "~" in front of that entry's date, which is how I had it originally. The indices of my chart are of course one greater than the indices of the Leyland "Prime Wiki" table because they are a reflection of OEIS A094133 which has a spurious first term.

20210610, 22:16  #464 
"Oliver"
Sep 2017
Porta Westfalica, DE
23^{2} Posts 
Looking at that table, there are a lot of results that should be able to be proven in less than a day (at least) on "bigger" systems. Please correct me, if I am wrong here, frequent Primo users!
If correct, I'd like to reserve some of the smaller ones tomorrow for Primo. I will specify them futher then and also double check them on FactorDB. In the list of kar_bon, maybe we should try to certify the "orange" entries, too? 
20210611, 07:14  #465  
Bamboozled!
"πΊππ·π·π"
May 2003
Down not across
2^{2}·7·383 Posts 
Quote:
Long ago I pointed out that they seem to have a reasonable density of primes of all sizes, have a very simple algebraic description and have no obvious properties which can be exploited by specialpurpose algorithms. Several have been used to set records for the size of a certified prime. They are frequently used, I believe, to test new implementations of general primality testing algorithms. 

20210614, 16:45  #466  
"Oliver"
Sep 2017
Porta Westfalica, DE
23^{2} Posts 
Quote:


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