[seqfan] Re: Seq and First diff use only a 3-digit alphabet

Eric Angelini Eric.Angelini at kntv.be
Wed Jun 9 17:01:54 CEST 2010


Waow, great, Franklin, thanks!

I've just found another zeroless 3-digit infinite seq:

1 2 11 12 21 22  121 122  221 222   1221 1222   2221 2222 ...
 1 9  1  9  1  99   1   99   1   999    1    999    1

Best,
É.



-----Message d'origine-----
De : seqfan-bounces at list.seqfan.eu [mailto:seqfan-bounces at list.seqfan.eu] De la part de franktaw at netscape.net
Envoyé : mercredi 9 juin 2010 16:47
À : seqfan at list.seqfan.eu
Objet : [seqfan] Re: Seq and First diff use only a 3-digit alphabet

That would be (view with fixed width font):

1,2,3,6,12,13,16,22,23,26,32,33,36,62,
 1 1 3 6  1  3  6  1  3  6  1  3  26 1

63,66,132,133,136,162,163,166,232,233,
  3  66  1   3   26  1   3   66  1   3

236,262,263,266,332,333,336,362,363,
   26  1   3   66  1   3   26  1   3

366,632,633,636,662,663,666,1332
   266 1   3   26  1   3   666

Starting 1,2,3,4 or 1,2,3,5, no next term is possible, so this is 
minimal. From the above, it should be clear that the sequence can be 
extended indefinitely.

Franklin T. Adams-Watters

-----Original Message-----
From: Eric Angelini <Eric.Angelini at kntv.be>

What would be the lexicographically first 4-digit seq?

Best,
É.


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