[seqfan] Re: How to respond to a message?

Harry J. Smith hjsmithh at sbcglobal.net
Mon Jan 12 05:29:55 CET 2009

I understand now. I was just not on the list yet when the message I wanted
to answer was generated, so the message was not sent to me. From now on I
can just reply to the messages I am interested in from my email program.

I did request an update to A131645 and sent a b-file to Neil on this


-----Original Message-----
From: seqfan-bounces at list.seqfan.eu [mailto:seqfan-bounces at list.seqfan.eu]
On Behalf Of Harry J. Smith
Sent: Sunday, January 11, 2009 4:12 PM
To: seqfan at seqfan.eu
Subject: [seqfan] How to respond to a message?

I would like to respond to a message I found at
http://list.seqfan.eu/pipermail/seqfan/2009-January/000494.html but I don't
know how. I will do it here:


There is more wrong with the b-file than a(1)=6661 being missing. All terms
starting with 666 like a(6) = 66601 are also missing. I will send Neil a
corrected b-file for n=1,.,20000 (1 6661 . 20000 68466659).


I used this PARI program to generate it:


digitsIn(x) = 1 + log(x)\log(10)



  default(primelimit, 4294965247);


  forprime (p=6660, 68466670,


    for (i=1, d-3,




      if (x==666, print(m, " ", p); write("b131645.txt", m, " ", p); m=m+1;





[seqfan] Re: b-file mismatch A131645

zak seidov zakseidov at yahoo.com
Fri Jan 9 17:52:33 CET 2009 

*	Previous message: [seqfan]
<http://list.seqfan.eu/pipermail/seqfan/2009-January/000488.html>  b-file
mismatch A131645 
*	Next message: [seqfan]
<http://list.seqfan.eu/pipermail/seqfan/2009-January/000489.html>  Re: Ugly
digit sum (no more typos ?) 
*	Messages sorted by: [
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author ] 


Also, Mmca code may be made shorter (and faster):
%t A131645 Select[Prime[Range[300000]],!StringFreeQ[ToString[#],"666"]&]
--- On Fri, 1/9/09, Richard Mathar <mathar
<http://list.seqfan.eu/cgi-bin/mailman/listinfo/seqfan>  at

> wrote:

 <http://list.seqfan.eu/cgi-bin/mailman/listinfo/seqfan> > From: Richard
Mathar <mathar at strw.leidenuniv.nl>
 <http://list.seqfan.eu/cgi-bin/mailman/listinfo/seqfan> > Subject: [seqfan]
b-file mismatch A131645
 <http://list.seqfan.eu/cgi-bin/mailman/listinfo/seqfan> > To: seqfan at
 <http://list.seqfan.eu/cgi-bin/mailman/listinfo/seqfan> > Date: Friday,
January 9, 2009, 9:54 AM
 <http://list.seqfan.eu/cgi-bin/mailman/listinfo/seqfan> > The value
a(1)=6661 in A131645 is obviously missing in the
 <http://list.seqfan.eu/cgi-bin/mailman/listinfo/seqfan> > associated b-file
b131645.txt. Can anyone submit a
 <http://list.seqfan.eu/cgi-bin/mailman/listinfo/seqfan> > corrected
 <http://list.seqfan.eu/cgi-bin/mailman/listinfo/seqfan> > b-file?
 <http://list.seqfan.eu/cgi-bin/mailman/listinfo/seqfan> > 
 <http://list.seqfan.eu/cgi-bin/mailman/listinfo/seqfan> >
 <http://www.research.att.com/~njas/sequences/A131645> > 
 <http://www.research.att.com/~njas/sequences/A131645> > Richard J. Mathar
 <http://www.research.att.com/~njas/sequences/A131645> > 
 <http://www.research.att.com/~njas/sequences/A131645> > 
 <http://www.research.att.com/~njas/sequences/A131645> >
 <http://www.research.att.com/~njas/sequences/A131645> > 
 <http://www.research.att.com/~njas/sequences/A131645> > Seqfan Mailing list
- http://list.seqfan.eu/

 <http://list.seqfan.eu/> -Harry



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