%I #4 Mar 30 2012 18:56:23
%S 16,18,20,22,24,127,130,133,136,139,246,249,252,255,258,261,264,267,
%T 270,273,276,277,279,280,282,283,285,286,288,289,291,294,297,300,303,
%U 306,309,312,315,318,321,324,327,330,333,336,339
%N Position of n-th 2 in A031312.
%K nonn
%O 1,1
%A _Clark Kimberling_