A043607 - OEIS

%I #11 Apr 25 2021 01:24:51

%S 16276,16277,16278,16279,16285,16286,16288,16289,16290,16291,16292,

%T 16294,16295,16296,16297,16298,16301,16302,16303,16304,16305,16307,

%U 16308,16309,16315,16316,16317,16319,16320,16321

%N Numbers whose base-5 representation has exactly 7 runs.

%t Select[Range[20000],Length[Split[IntegerDigits[#,5]]]==7&] (* _Harvey P. Dale_, Jan 18 2015 *)

%Y Cf. A007091.

%K nonn,base

%O 1,1

%A _Clark Kimberling_