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%I #13 May 14 2023 04:11:40
%S 342,345,357,405,597,1110,1113,1125,1173,1302,1305,1317,1350,1353,
%T 1362,1368,1371,1374,1377,1380,1383,1389,1398,1401,1413,1425,1428,
%U 1431,1437,1461,1494,1497,1509,1557,1605,1617,1620
%N Numbers whose base-4 representation contains exactly four 1's and one 2.
%t Select[Range[2000],DigitCount[#,4,1]==4&&DigitCount[#,4,2]==1&] (* _Harvey P. Dale_, Jan 30 2017 *)
%Y Cf. A007090.
%K nonn,base
%O 1,1
%A _Clark Kimberling_
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