[seqfan] Re: A220952 "unkn" (author Don Knuth, Feb 20, 2013) - continuation?

[Rob Pratt]

American Mathematical Monthly Problem 11733: A Twisted Enumeration of the Positive Integers
Solution in Volume 123, No. 1 (January 2016)

-----Original Message-----
From: SeqFan [mailto:seqfan-bounces at list.seqfan.eu] On Behalf Of israel at math.ubc.ca
Sent: Thursday, August 24, 2017 8:17 PM
To: Sequence Fanatics Discussion list <seqfan at list.seqfan.eu>
Subject: [seqfan] Re: A220952 "unkn" (author Don Knuth, Feb 20, 2013) - continuation?

EXTERNAL

Since the sequence was contributed on Feb 20 2013, I would suspect it has already been published.

Cheers,
Robert

On Aug 24 2017, Neil Sloane wrote:

>I'm a bit skeptical that that is the correct explanation
>
>The way the sequence was entered suggests that Don Knuth proposed it as 
>a problem in some journal, and so did not want to give the explanation 
>before the solution appeared in the journal.
>
>Presumably when the journal appears, someone will make the connection 
>with the OEIS entry.
>
>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 Thu, Aug 24, 2017 at 5:50 PM, Georg.Fischer 
><georg.fischer at t-online.de> wrote:
>> Dear Neil, dear SeqFans,
>>
>> It seems to me that sequence A220952 never has received any comment.
>> Maybe Neil knows more.
>>
>> I think that a(n=0..125) should read: 1, 2,3,4,9, 
>> 14,19,18,17,16,11,12,13,8,7,6,5,10,15,20,21,22,23,24,
>> 49,74,99,98,97,96,95,90,85,80,81,82,83,88,87,86,91,92,93,94,89,84,79,
>> 78,77,76,51, 
>> 52,53,54,59,64,69,68,67,66,61,62,63,58,57,56,55,60,65,70,71,72,73,48,
>> 47,46,45,40, 
>> 35,30,31,32,33,38,37,36,41,42,43,44,39,34,29,28,27,26,25,50,75,100,10
>> 1,102,103,104, 
>> 109,114,119,118,117,116,111,112,113,108,107,106,105,110,115,120,121,1
>> 22,123,124,
>> 249
>>
>> Please have a look at my page
>> <http://www.teherba.org/index.php/OEIS/A220952> where you find some 
>> explanations and links to the plots which show letter "Z" shaped 
>> structures in kind of "fractal"
>> nesting.
>>
>> I do not dare to add a comment to the sequence until somebody finds 
>> this reasonable. If my continuation is the desired one, I would of 
>> cause be very interested in additional interpretations.
>>
>> Best regards - Georg Fischer
>>
>>
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