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A031494 Numbers whose base-9 representation has 2 more 0's than 8's. 0

%I

%S 81,162,243,324,405,486,567,730,731,732,733,734,735,736,738,747,756,

%T 765,774,783,792,810,891,972,1053

%N Numbers whose base-9 representation has 2 more 0's than 8's.

%t Select[Range@2000,(s=#;Differences[Count[IntegerDigits[s,9],#]&/@{0,8}]=={-2})&] (* _Giorgos Kalogeropoulos_, Jul 04 2021 *)

%Y Cf. A007095.

%K nonn,base

%O 1,1

%A _Clark Kimberling_

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Last modified May 26 11:30 EDT 2022. Contains 354086 sequences. (Running on oeis4.)