Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
%I #4 Mar 30 2012 18:56:20
%S 3,9,31,43,55,57,65,70,80,88,97,103,111,116,117,123,131,147,150,151,
%T 156,170,176,182,190,195,200,205,217,221,225,230,235,236,241,256,263,
%U 264,265,274,275,286,295,297,299,302,304,311,315
%N Position of n-th 3 in A031027.
%K nonn
%O 1,1
%A _Clark Kimberling_