Early Bird numbers

[JEREMY GARDINER]

  I found some interesting references through Google:
   
  http://www.itsoc.org/publications/nltr/it1202.pdf
http://www.itsoc.org/publications/nltr/it0303web.pdf
http://membership.kcatm.org/pub/summ2-06.pdf
   
  Jeremy
   
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"N. J. A. Sloane" <njas at research.att.com> wrote:
  
Dear Seqfans, My old friend Bernardo Recaman Santos just
sent a really nice sequence:

%I A116700
%S A116700 12,21,23,31,32,34,41,42,43
%N A116700 "Early bird" numbers: write the natural numbers in a string 12345678910111213....
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