[seqfan] Re: Involving palindromes and sum-of-digits
Neil Sloane
njasloane at gmail.com
Mon Aug 22 15:42:49 CEST 2016
That does seem interesting, Yes. So please add all three sequences to the OEIS!
Best regards
Neil
Neil J. A. Sloane, President, OEIS Foundation.
11 South Adelaide Avenue, Highland Park, NJ 08904, USA.
Also Visiting Scientist, Math. Dept., Rutgers University, Piscataway, NJ.
Phone: 732 828 6098; home page: http://NeilSloane.com
Email: njasloane at gmail.com
On Mon, Aug 22, 2016 at 9:36 AM, Lars Blomberg <larsl.blomberg at comhem.se> wrote:
>
>
> Hello,
>
>
>
> In http://www.primepuzzles.net/puzzles/puzz_041.htm, section B the following
> sequence is defined:
>
>
>
> Palindrome1 / Sum-of-digits(Palindrome1) = Palindrome2.
>
>
>
> First few terms (skipping the trivial 1..9):
>
>
>
> Pal1 SOD(Pal1) Pal2
>
> 279972 36 7777
>
> 2774772 36 77077
>
> 5499945 45 122221
>
> 25477452 36 707707
>
> 27722772 36 770077
>
> 254545452 36 7070707
>
> 277202772 36 7700077
>
> 279999972 63 4444444
>
>
>
> Is Pal1 sequence of interest?
>
> If so, should Pal2 and SOD(Pal1) be added as separate sequences?
>
>
>
> Best regards,
>
> Lars B
>
>
> --
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