%I
%S 0,1,2,10,20,21,102,110,210,211,212,220,1011,1112,1121,2022,12101,
%T 12102,12112,12122,10121021,10121022,12222212,102121110,102121120,
%U 200121022,1001120220,2011001102,2012012221,2100221021,2102111111
%N Numbers n with property that n is a substring of its base 3 representation.
%H Giovanni Resta, <a href="/A038103/b038103.txt">Table of n, a(n) for n = 1..151</a> (terms < 10^18)
%e 12101 = base 10 > 121{12101}2 = base 3.
%Y Cf. A038102A038106, A228050A228052, A227549.
%K nonn,base,changed
%O 1,3
%A _Patrick De Geest_, Feb 15 1999
