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%I #14 May 19 2023 19:56:33
%S 49,109,121,149,199,224,229,239,244,245,247,248,299,359,371,424,484,
%T 496,509,521,529,539,544,545,547,548,559,571,584,596,601,605,607,608,
%U 611,616,649,699,724,729,739,744,745,747,748,899
%N Numbers whose base-5 representation contains exactly one 1 and two 4's.
%t Select[Range[1000],DigitCount[#,5,1]==1&&DigitCount[#,5,4]==2&] (* _Harvey P. Dale_, Apr 11 2020 *)
%Y Cf. A007091.
%K nonn,base
%O 1,1
%A _Clark Kimberling_
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