%I #4 Mar 30 2012 18:56:20
%S 7,23,41,59,77,95,113,118,120,122,124,126,128,130,131,132,134,149,174,
%T 201,228,255,282,309,336,343,346,349,352,355,358,361,363,364,367,390,
%U 417,444,471,498,525,552,579,586,589,592,595
%N Position of n-th 7 in A031087.
%K nonn
%O 1,1
%A _Clark Kimberling_
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