%I #11 Sep 03 2020 09:45:00
%S 2,6,12,20,30,41,42,55,56,71,72,89,90,109,110,130,131,132,154,155,156,
%T 180,181,182,208,209,210,238,239,240,269,270,271,272,303,304,305,306,
%U 339,340,341,342,377,378,379,380,417,418,419,420,458,459,460,461,462
%N Fractional part of square root of a(n) starts with digit 4.
%t Select[Range[500],Mod[Floor[10*Sqrt[#]],10]==4&] (* _Harvey P. Dale_, Oct 21 2016 *)
%Y Cf. A034110.
%K nonn,easy,base
%O 1,1
%A _Patrick De Geest_, Sep 15 1998