%I #4 Mar 30 2012 18:56:21
%S 2,9,16,18,19,20,22,24,29,39,51,66,76,79,81,82,85,88,96,111,122,125,
%T 126,128,131,134,137,140,141,143,146,149,151,152,154,155,156,157,158,
%U 160,161,163,164,167,170,171,173,176,179,182,185
%N Position of n-th 2 in A031235.
%K nonn
%O 1,1
%A _Clark Kimberling_
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