20210907, 02:34  #1 
"Matthew Anderson"
Dec 2010
Oregon, USA
2^{4}·3^{2}·7 Posts 
prime constellations web page
The attached file was hosted online by Google. Google provided this service to me for free.
Unfortunately, I am no longer able to edit the online file, and I don't know how long it will be before it is wiped off the internet. I want to share this information with the world. There are many hours of original prime constellation calculations in this project. Also, other people have done calculations, and the results are shared at The Online Encyclopedia of Integer Sequences.org. Have a look. Matthew C. Anderson 
20210907, 03:02  #2 
If I May
"Chris Halsall"
Sep 2002
Barbados
10193_{10} Posts 

20211018, 18:38  #3 
"Matthew Anderson"
Dec 2010
Oregon, USA
2^{4}×3^{2}×7 Posts 
Hi all,
I found a webpage with a nice definition of Prime constellations. Especially I like that they specified no repetitions and some prime numbers can be skipped if it is a prime cluster. Prime constellations are prime clusters with certain restrictions. https://oeis.org/wiki/Prime_constellations Regards, Matt 
20211018, 20:46  #4 
Mar 2007
Estonia
225_{8} Posts 
Looks like a fun way to get into primes  it's something that would have aroused my interest a decade ago. But am I overlooking something? All these(the ones in the PDF) would take up to a second to find.
Last fiddled with by kuratkull on 20211018 at 20:46 Reason: pdf 
20211019, 02:33  #5  
"Matthew Anderson"
Dec 2010
Oregon, USA
2^{4}×3^{2}×7 Posts 
Quote:
Most of the prime lists I found were at least an overnight calculation. I used the isprime() function in Maple and it is quite slow. But easy to use. I only learned 3 computer languages  Pascal, Maple, and HTML. I spent over two months of computer calculation back in 2006 to come up with some original calculations of shortest prime constellations. Lets look at the 9tuples  in the OEIS.org/A022546. These are linked from "Search for Prime Constellations.pdf" file in this thread. I did 200 prime number entries in the sequence. Then Dana Jacobsen did 800 more, taking the list to 1,000. Now Normah Luhn has taken the lists even further and is actively working on it in 2021. see http://www.pzktupel.de/ktuplets.htm check line 27. List of the smallest prime ktuplets. Cheers Matt Last fiddled with by MattcAnderson on 20211019 at 02:34 Reason: mispelled name 

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