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A043632 Numbers whose base-9 representation has exactly 3 runs. 0

%I

%S 82,83,84,85,86,87,88,89,99,100,102,103,104,105,106,107,108,109,110,

%T 112,113,114,115,116,117,118,119,120,122,123,124,125,126,127,128,129,

%U 130,132,133,134,135,136,137,138,139,140,142,143

%N Numbers whose base-9 representation has exactly 3 runs.

%t Select[Range[150],Length[Split[IntegerDigits[#,9]]]==3&] (* _Harvey P. Dale_, May 11 2019 *)

%Y Cf. A007095.

%K nonn,base

%O 1,1

%A _Clark Kimberling_

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Last modified November 28 19:48 EST 2021. Contains 349415 sequences. (Running on oeis4.)