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%I #9 Apr 25 2021 01:26:27
%S 4369,4370,4371,4376,4377,4379,4380,4381,4382,4385,4386,4387,4388,
%T 4390,4391,4396,4397,4398,4401,4402,4403,4404,4406,4407,4408,4409,
%U 4411,4484,4486,4487,4488,4489,4491,4492,4493,4494
%N Numbers whose base-4 representation has exactly 7 runs.
%Y Cf. A007090.
%K nonn,base
%O 1,1
%A _Clark Kimberling_