A039465 - OEIS

%I #13 Jun 30 2021 04:32:32

%S 37,47,158,168,279,289,367,378,389,407,408,409,412,413,414,415,416,

%T 417,422,433,444,455,466,477,487,498,509,517,518,519,522,523,524,525,

%U 526,527,542,553,564,575,586,597,642,652,763,773,884,894,1005,1015

%N Numbers whose base-11 representation has the same nonzero number of 3's and 4's.

%t Select[Range[1100],DigitCount[#,11,3]==DigitCount[#,11,4]>0&] (* _Harvey P. Dale_, Jan 29 2012 *)

%K nonn,base,easy

%O 1,1

%A _Olivier Gérard_