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A043774 Numbers n such that number of runs in the base 3 representation of n is congruent to 1 mod 3. 0
1, 2, 4, 8, 13, 26, 30, 32, 33, 34, 40, 46, 47, 48, 50, 57, 59, 60, 61, 64, 65, 69, 70, 80, 84, 86, 87, 88, 90, 93, 95, 98, 99, 103, 105, 106, 111, 113, 114, 115, 121, 127, 128, 129, 131, 136, 137, 139, 143, 144, 147, 149, 152, 154, 155 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
MATHEMATICA
Select[Range[200], Mod[Length[Split[IntegerDigits[#, 3]]], 3]==1&] (* Harvey P. Dale, Apr 06 2013 *)
CROSSREFS
Sequence in context: A102704 A196720 A212906 * A361818 A043777 A043781
KEYWORD
nonn,base
AUTHOR
STATUS
approved

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Last modified July 17 10:03 EDT 2024. Contains 374375 sequences. (Running on oeis4.)