A216438 - OEIS

%I #67 Feb 12 2015 04:04:50

%S 27,81,91,135,189,203,221,243,247,273,297,305,309,351,371,377,405,455,

%T 459,489,513,515,551,559,567,597,609,621,637,663,675,721,729,741,779,

%U 783,815,819,837,891,915,927,945,995,999,1001,1015,1053,1079

%N Odd composite numbers which do not divide any tribonacci number.

%C Odd composite numbers that do not divide any term of A000213.

%H V. Raman, <a href="/A216438/b216438.txt">Table of n, a(n) for n = 1..132</a>

%Y Cf. A215782, A000213, A215964.

%K nonn

%O 1,1

%A _V. Raman_, Sep 09 2012