[seqfan] Re: A098550.

[Neil Sloane]

Hans, I never thought of that. Nice.

What about the following related sequences:
- length of loop if you start at n
- high-water mark in loop starting at n

(I'm writing this without actually seeing the loops)

The reason for adding these seqs to the OEIS (please!) is that if we keep
doing this, sooner or later one of these sequences from one of these
problems is going to match a sequence
from one of the other problems, and we will have a remarkable theorem

(or, to use Barry Cipra's phrase, if one of these fingerprints
turns up in an unrelated crime scene, we will learn something!)

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, Dec 1, 2014 at 9:41 PM, Hans Havermann <gladhobo at teksavvy.com>
wrote:

> By the way, if we iterate n -> A098550(n), I have yet to find a longer
> loop than (1470, 2031, 1882, 1742, 2145, 1986, 2353, 5455, 6241, 2917,
> 2706, 2516, 2334, 2164, 2008, 1862, 2259, 2737, 2542, 3105, 3749, 3480,
> 4155, 3868, 3602, 4287, 1997, 1852, 1716, 1592).
>
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