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Numbers containing their length in ternary representation.
3

%I #5 Mar 30 2012 18:50:59

%S 1,5,6,7,8,9,10,11,12,21,31,36,37,38,39,40,41,42,43,44,49,58,66,67,68,

%T 76,86,95,96,97,98,104,113,122,123,124,125,126,127,128,129,130,131,

%U 132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149

%N Numbers containing their length in ternary representation.

%H R. Zumkeller, <a href="/A138167/b138167.txt">Table of n, a(n) for n = 1..10000</a>

%e 42 ->'1120', length = 4 ->'11', therefore 42 is a term;

%e 420 ->'120120', length = 6 ->'20', therefore 420 is a term.

%Y Cf. A081604, A138166, A138168.

%K nonn,base

%O 1,2

%A _Reinhard Zumkeller_, Mar 03 2008