login
Numbers whose base-12 representation has the same nonzero number of 1's and 6's.
0

%I #12 Jul 01 2021 02:51:50

%S 18,73,150,174,186,198,210,216,218,219,220,221,223,224,225,226,227,

%T 234,246,258,270,282,306,361,450,505,594,649,738,793,865,876,878,879,

%U 880,881,883,884,885,886,887,889,901,913,925,949,961,973,985,997,1026

%N Numbers whose base-12 representation has the same nonzero number of 1's and 6's.

%t Select[Range[1200],DigitCount[#,12,1]==DigitCount[#,12,6]>0&] (* _Harvey P. Dale_, Oct 14 2018 *)

%K nonn,base,easy

%O 1,1

%A _Olivier GĂ©rard_