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A037320 Numbers whose base-4 and base-9 expansions have the same digit sum. 0

%I

%S 1,2,3,28,29,30,31,54,55,100,101,102,103,198,199,248,249,250,251,270,

%T 271,342,343,441,442,443,488,489,490,491,752,753,754,755,774,775,824,

%U 825,826,827,873,874,875,920,921,922,923,945

%N Numbers whose base-4 and base-9 expansions have the same digit sum.

%t Select[Range[1000],Total[IntegerDigits[#,4]]==Total[IntegerDigits[#,9]]&] (* _Harvey P. Dale_, Jun 23 2017 *)

%K nonn,base

%O 1,2

%A _Clark Kimberling_

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Last modified September 27 21:12 EDT 2021. Contains 347698 sequences. (Running on oeis4.)