The OEIS is supported by the many generous donors to the OEIS Foundation.
%I #4 Mar 30 2012 18:52:53
%S 1,9,21,25,27,33,45,57,75,77,81,85,91,93,105,115,117,121,125,133,135,
%T 141,145,147,165,169,171,175,177,187,189,201,205,213,217,221,225,231,
%U 235,243,245,247,253,261,273,275,289,297,301,315,325,333,343,345,355,357,361,363
%N Odd indices m for which A174869(m) is <>1.
%C All but the first term in the sequence are composite numbers.
%e The 9 refers to A174869(9) = 7. The 21 refers to A174869(21) = 3.
%Y Cf. A174869, A006530, A103667, A023503, A023509, A174857, A020639 ,A002618, A036689.
%K nonn
%O 1,2
%A _Vladimir Shevelev_, Mar 31 2010
%E More terms from _R. J. Mathar_, Aug 10 2010