%I #6 Mar 30 2012 17:30:05
%S 2,7,13,18,24,29,31,36,42,47,53,58,64,69,71,76,82,87,93,98,104,110,
%T 115,121,126,132,137,143,149,154,160,165,171,176,178,183,189,194,200,
%U 205,211,217,222,228,233,239,244,246,251,257,262,268,273,279,285,290
%N Numbers such that A172470(n) = 52.
%Y Cf. A172470.
%K nonn
%O 1,1
%A _Stephen Crowley_, Mar 14 2012