A043843 - OEIS

A043843

Numbers n such that number of runs in the base 4 representation of n is congruent to 0 mod 7.

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

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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