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A039408 Numbers n such that representation in base 10 has same nonzero number of 1's and 8's. 0

%I

%S 18,81,108,128,138,148,158,168,178,180,182,183,184,185,186,187,189,

%T 198,218,281,318,381,418,481,518,581,618,681,718,781,801,810,812,813,

%U 814,815,816,817,819,821,831,841,851,861,871,891,918,981,1008,1028

%N Numbers n such that representation in base 10 has same nonzero number of 1's and 8's.

%t Select[Range[1200],DigitCount[#,10,1]==DigitCount[#,10,8]>0&] (* _Harvey P. Dale_, Feb 04 2015 *)

%K nonn,base,easy

%O 1,1

%A _Olivier GĂ©rard_

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Last modified January 25 03:16 EST 2021. Contains 340415 sequences. (Running on oeis4.)