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Numbers whose base-10 representation has the same nonzero number of 4's and 8's.
0

%I #12 Jun 30 2021 03:56:47

%S 48,84,148,184,248,284,348,384,408,418,428,438,458,468,478,480,481,

%T 482,483,485,486,487,489,498,548,584,648,684,748,784,804,814,824,834,

%U 840,841,842,843,845,846,847,849,854,864,874,894,948,984,1048,1084

%N Numbers whose base-10 representation has the same nonzero number of 4's and 8's.

%t Select[Range[1100],DigitCount[#,10,4]==DigitCount[#,10,8]>0&] (* _Harvey P. Dale_, Aug 18 2019 *)

%K nonn,base,easy

%O 1,1

%A _Olivier GĂ©rard_