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%I #10 Aug 26 2013 17:12:57
%S 0,1,2,3,4,5,6,7,8,9,87,65,43,21,23,45,67,89,876,54,32,10,12,34,56,76,
%T 78,98,765,432,101,210,121,212,123,232,321,234,323,434,343,454,345,
%U 456,543,2101,2121,2123,2321,2323,2343,2345,654,545,656,565,676,567
%N Start with 0. Successive digits in the sequence must differ by 1. Adjoin the smallest number not yet in the sequence.
%C Is the sequence infinite?
%C Yes, as for any digit d, there are infinitely many terms in A033075 with leading digit d+1 or d-1. - _Paul Tek_ Aug 25 2013
%D Eric Angelini, Posting to the Sequence Fans Mailing List, Aug 23 2013.
%H Paul Tek, <a href="/A228326/b228326.txt">Table of n, a(n) for n = 1..10000</a>
%H Paul Tek, <a href="/A228326/a228326.txt">PERL program for this sequence</a>
%Y Cf. A228327, A228328, A033075.
%K nonn,base
%O 1,3
%A _N. J. A. Sloane_, Aug 24 2013
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