%I #11 Aug 14 2021 18:53:40
%S 91,92,96,97,100,101,102,104,138,140,141,142,145,146,150,151,172,173,
%T 177,178,181,182,183,185,192,194,195,196,208,209,210,212,253,254,258,
%U 259,262,263,264,266,271,272,274,278,280,281
%N Numbers whose number of runs in base 3 is congruent to 5 (mod 7).
%t Select[Range[300],Mod[Length[Split[IntegerDigits[#,3]]],7]==5&] (* _Harvey P. Dale_, Jan 13 2019 *)
%Y Cf. A007089.
%K nonn,base
%O 1,1
%A _Clark Kimberling_