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%I #10 Apr 02 2014 03:26:16
%S 124,249,374,499,524,549,574,599,604,609,614,619,620,621,622,623,749,
%T 874,999,1124,1149,1174,1199,1224,1229,1234,1239,1244,1245,1246,1247,
%U 1248,1374,1499,1624,1749,1774,1799,1824,1849
%N Numbers with exactly 3 4's in base 5 expansion.
%H Vincenzo Librandi, <a href="/A023740/b023740.txt">Table of n, a(n) for n = 1..1000</a>
%t Select[ Range[ 2000 ], (Count[ IntegerDigits[ #, 5 ], 4 ]==3)& ]
%K nonn,base,easy
%O 1,1
%A _Olivier Gérard_