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Numbers m such that the digital root in balanced ternary representation equals -1.
4

%I #7 Mar 30 2012 18:50:59

%S 5,15,17,23,41,43,45,47,51,53,59,69,71,77,95,121,123,125,127,129,131,

%T 133,135,137,141,143,149,151,153,155,159,161,167,177,179,185,203,205,

%U 207,209,213,215,221,231,233,239,257,283,285,287,293,311,337,355,361

%N Numbers m such that the digital root in balanced ternary representation equals -1.

%C A134452(a(n)) = -1; union with A134454 gives the odd numbers (A005408).

%H R. Zumkeller, <a href="/A134453/b134453.txt">Table of n, a(n) for n = 1..1000</a>

%K nonn,base

%O 1,1

%A _Reinhard Zumkeller_, Oct 27 2007