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A043843 Numbers n such that number of runs in the base 4 representation of n is congruent to 0 mod 7. 1
4369, 4370, 4371, 4376, 4377, 4379, 4380, 4381, 4382, 4385, 4386, 4387, 4388, 4390, 4391, 4396, 4397, 4398, 4401, 4402, 4403, 4404, 4406, 4407, 4408, 4409, 4411, 4484, 4486, 4487, 4488, 4489, 4491, 4492, 4493, 4494 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..36.

MATHEMATICA

Select[Range[5000], Divisible[Length[Split[IntegerDigits[#, 4]]], 7]&] (* Harvey P. Dale, Jul 22 2013 *)

CROSSREFS

Sequence in context: A140937 A327789 A043598 * A043857 A043865 A043874

Adjacent sequences: A043840 A043841 A043842 * A043844 A043845 A043846

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified February 4 19:58 EST 2023. Contains 360059 sequences. (Running on oeis4.)