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Numbers whose base-11 representation has the same nonzero number of 6's and 8's.
0

%I #12 Jun 30 2021 04:33:04

%S 74,94,195,215,316,336,437,457,558,578,679,699,734,745,756,767,778,

%T 789,811,814,815,816,817,818,819,821,823,824,833,844,921,941,974,985,

%U 996,1007,1018,1029,1034,1035,1036,1037,1038,1039,1041,1043,1044,1051

%N Numbers whose base-11 representation has the same nonzero number of 6's and 8's.

%t Select[Range[1100],DigitCount[#,11,6]==DigitCount[#,11,8]>0&] (* _Harvey P. Dale_, Feb 23 2015 *)

%K nonn,base,easy

%O 1,1

%A _Olivier GĂ©rard_