[seqfan] Re: A046452

[Charles Greathouse]

Harvey, I agree that terms are missing. I have edited the sequence. Feel
free to fix the description as you see fit.

Charles Greathouse
Analyst/Programmer
Case Western Reserve University


On Fri, Jan 4, 2013 at 3:17 PM, Harvey P. Dale <hpd at hpdale.org> wrote:

> Graeme:
>         Then would this definition work: "Numbers n with three prime
> factors such that the concatenation of those prime factors is a palindrome"?
>         And why are the numbers I mentioned in my earlier email (below)
> not in the current sequence?
>         Best,
>         Harvey
>
>
> -----Original Message-----
> From: SeqFan [mailto:seqfan-bounces at list.seqfan.eu] On Behalf Of Graeme
> McRae
> Sent: Friday, January 04, 2013 3:04 PM
> To: Sequence Fanatics Discussion list
> Subject: [seqfan] Re: A046452
>
> Because the elements a(n) of sequence A046452 have nothing to do with n.
>  It's just a list of numbers, a(n), satisfying the property.  I agree with
> you, though, that the word "composite" is superfluous.
>
> --Graeme McRae
> Palmdale, CA
>
>
> On Fri, Jan 4, 2013 at 11:58 AM, Harvey P. Dale <hpd at hpdale.org> wrote:
>
> >             I believe I am misunderstanding something about the above
> > sequence.  Why aren't these numbers in the sequence: 3729, 28609,
> > 28847, 28951, 29729, 29829?  And why does the definition read,
> > "Concatenation of the 3 prime factors of composite a(n) is a
> > palindrome," rather than "Concatenation of the 3 prime factors of n is a
> palindrome"?
> >             Clarification would be appreciated.
> >             Best,
> >             Harvey
> >
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> >
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