%I #3 Mar 30 2012 18:55:50
%S 1,2,4,7,11,16,21,27,34,42,51,60,70,81,93,106,120,134,149,165,182,200,
%T 218,237,257,278,300,323,346,370,395,421,448,475,503,532,562,593,625,
%U 657,690,724,759,795,831,868,906,945,985,1026,1067,1109
%N Place where n-th 1 occurs in A023121.
%K nonn
%O 1,2
%A _Clark Kimberling_
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