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%I #13 May 16 2023 22:07:05
%S 324,364,372,564,572,612,949,989,997,1189,1197,1237,1324,1364,1372,
%T 1449,1489,1497,1524,1549,1599,1604,1609,1619,1620,1621,1623,1699,
%U 1739,1747,1764,1772,1789,1797,1804,1809,1819,1820
%N Numbers whose base-5 representation contains exactly two 2's and two 4's.
%t Select[Range[2000],DigitCount[#,5,2]==DigitCount[#,5,4]==2&] (* _Harvey P. Dale_, Aug 09 2017 *)
%Y Cf. A007091.
%K nonn,base
%O 1,1
%A _Clark Kimberling_
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