[seqfan] Re: A046452

[Graeme McRae]

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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