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A039541 Numbers whose base-12 representation has the same nonzero number of 5's and 9's. 0

%I #12 Jul 01 2021 00:01:51

%S 69,113,213,257,357,401,501,545,645,689,729,741,753,765,777,801,813,

%T 825,828,829,830,831,832,834,835,836,838,839,849,861,933,977,1077,

%U 1121,1221,1265,1301,1313,1325,1337,1349,1356,1357,1358,1359,1360

%N Numbers whose base-12 representation has the same nonzero number of 5's and 9's.

%t Select[Range[1500],DigitCount[#,12,5]==DigitCount[#,12,9]>0&] (* _Harvey P. Dale_, Feb 01 2019 *)

%K nonn,base,easy

%O 1,1

%A _Olivier GĂ©rard_

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Last modified February 22 11:38 EST 2024. Contains 370255 sequences. (Running on oeis4.)