%I #4 Mar 30 2012 18:56:20
%S 2,13,28,30,31,32,34,36,38,40,42,44,49,67,85,103,121,139,159,186,208,
%T 211,213,214,217,220,223,226,229,232,240,267,294,321,348,375,398,401,
%U 402,404,407,410,413,416,419,422,425,428,429
%N Position of n-th 2 in A031087.
%K nonn
%O 1,1
%A _Clark Kimberling_
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