%I #4 Mar 30 2012 18:56:19
%S 6,19,33,47,61,75,78,80,82,84,86,88,89,90,109,130,151,172,193,214,218,
%T 221,224,227,230,233,235,236,256,277,298,319,340,361,365,368,371,374,
%U 377,380,382,383,403,424,445,466,487,508,512
%N Position of n-th 6 in A031007.
%K nonn
%O 1,1
%A _Clark Kimberling_