%I #4 Mar 30 2012 18:56:20
%S 1,5,7,15,17,23,26,27,28,31,43,45,48,50,67,68,79,85,92,93,99,107,109,
%T 114,120,128,146,150,151,160,163,164,166,168,177,180,194,196,197,206,
%U 217,221,227,236,240,247,260,268,277,281,284
%N Position of n-th 1 in A031067.
%K nonn
%O 1,2
%A _Clark Kimberling_