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A033004 Every run of digits of n in base 6 has length 2. 2
7, 14, 21, 28, 35, 252, 266, 273, 280, 287, 504, 511, 525, 532, 539, 756, 763, 770, 784, 791, 1008, 1015, 1022, 1029, 1043, 1260, 1267, 1274, 1281, 1288, 9079, 9086, 9093, 9100, 9107, 9576, 9583, 9597, 9604, 9611, 9828, 9835 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
See A043291 and A033001 through A033014 for the analog in other bases, A033015 - A033029 for the variants with run lengths >= 2. - M. F. Hasler, Feb 02 2014
LINKS
FORMULA
a(n) = 7*A043310(n) (= 7*n for n<6). - M. F. Hasler, Feb 02 2014
MATHEMATICA
Select[Range[10000], Union[Length/@Split[IntegerDigits[#, 6]]]=={2}&] (* Vincenzo Librandi, Feb 05 2014 *)
CROSSREFS
Sequence in context: A031483 A020334 A044832 * A189931 A164005 A100451
KEYWORD
nonn,base
AUTHOR
STATUS
approved

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Last modified February 24 22:04 EST 2024. Contains 370307 sequences. (Running on oeis4.)