20110212, 19:16  #1 
Dec 2009
3^{3} Posts 
Hoot discussion  "Beastly primes".

20110212, 19:31  #2 
Dec 2009
3^{3} Posts 
In my opinion, there's a 'big hole' in the definition of beastly primes.
http://oeis.org/A131645 
20110212, 19:34  #3 
"Forget I exist"
Jul 2009
Dumbassville
2^{6}·131 Posts 
It's doesn't seem as hot as you make it sound and to be honest I think by posting a draft link you've allowed people to spam the OEIS no ?
Also you know you can edit previous sequences no ? so there's no reason to have both of them. Last fiddled with by science_man_88 on 20110212 at 19:37 
20110212, 19:48  #4  
"Forget I exist"
Jul 2009
Dumbassville
2^{6}·131 Posts 
typo
though now that you bring it up there's a typo on Caldwell's page.
Quote:


20110213, 02:08  #5 
Aug 2006
3^{2}×5×7×19 Posts 
Heh, looks like the OEIS is spilling out onto the Mersenne forums. (If my handle doesn't make it clear, this is Charles R Greathouse IV, the editorinchief who commented on that link.)
I'm still unclear on one point. For the palindromic version, are the primes required to start and end with the same digit, or can those be mixed? These would lead to different sequences since, e.g., 10006660007 is prime. Assuming that they must be the same I submitted a bfile with all the terms under a thousand digits. Last fiddled with by CRGreathouse on 20110213 at 02:13 
20110213, 14:42  #6 
Dec 2010
Monticello
5×359 Posts 
by the usual definition of palindrome (reads the same forward as backwards), 10006660007 is *NOT* a palindrome. (but you could argue with me that it was a quasipalindrome, since only the initial or final digit differs from a palindrome).
One other problem with these sequences...their OEIS numbers don't involve 666 as substrings!! 
20110213, 21:41  #8 
Aug 2006
13541_{8} Posts 

20110214, 06:41  #10 
Aug 2006
1761_{16} Posts 

20111126, 18:04  #11 
Dec 2009
3^{3} Posts 
Please help to extend these sequences:
http://oeis.org/A186630 http://oeis.org/A186538 http://oeis.org/A156166 http://oeis.org/A186521 
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