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A043414 Numbers having two 5's in base 7. 0

%I

%S 40,89,138,187,236,250,257,264,271,278,280,281,282,283,284,286,292,

%T 334,383,432,481,530,579,593,600,607,614,621,623,624,625,626,627,629,

%U 635,677,726,775,824,873,922,936,943,950,957,964

%N Numbers having two 5's in base 7.

%t Select[Range[1000],DigitCount[#,7,5]==2&] (* _Harvey P. Dale_, Apr 03 2011 *)

%Y Cf. A007093.

%K nonn,base

%O 1,1

%A _Clark Kimberling_

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Last modified October 17 15:25 EDT 2021. Contains 348051 sequences. (Running on oeis4.)