%I #4 Mar 30 2012 18:56:21
%S 4,18,38,58,71,73,75,77,78,79,81,83,85,87,89,98,118,138,158,178,202,
%T 232,262,292,311,314,317,320,322,323,326,329,332,335,338,352,382,412,
%U 442,472,502,532,562,592,611,614,617,620,622,623
%N Position of n-th 4 in A031298.
%K nonn
%O 1,1
%A _Clark Kimberling_