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Number of runs in the base 3 representation of n is congruent to 5 mod 6.

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`%I #6 Apr 19 2023 13:05:53
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`%S 91,92,96,97,100,101,102,104,138,140,141,142,145,146,150,151,172,173,
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`%T 177,178,181,182,183,185,192,194,195,196,208,209,210,212,253,254,258,
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`%U 259,262,263,264,266,271,272,274,278,280,281
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`%N Number of runs in the base 3 representation of n is congruent to 5 mod 6.
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`%t Select[Range[300],Mod[Length[Split[IntegerDigits[#,3]]],6]==5&] (* _Harvey P. Dale_, Apr 19 2023 *)
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`%K nonn,base
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`%O 1,1
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`%A _Clark Kimberling_
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