

A033029


Every run of digits of n in base 16 has length greater than or equal to 2.


30



17, 34, 51, 68, 85, 102, 119, 136, 153, 170, 187, 204, 221, 238, 255, 273, 546, 819, 1092, 1365, 1638, 1911, 2184, 2457, 2730, 3003, 3276, 3549, 3822, 4095, 4352, 4369, 4386, 4403, 4420, 4437, 4454, 4471, 4488, 4505, 4522, 4539
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OFFSET

1,1


COMMENTS

First term that is not a multiple of 17 (A008599) is 273, which is one more than 272 = 16 * 17. In hexadecimal, 272 is 110, which having a single 0 next to a 1, disqualifies it from this sequence.  Alonso del Arte, Oct 16 2016


LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000


EXAMPLE

255 in hexadecimal is FF, a run of two Fs, hence 255 is in the sequence.
273 in hexadecimal is 111, a run of three 1s, hence 273 is in the sequence.
291 in hexadecimal is 123, three distinct single digits, so 291 is not in the sequence.


MATHEMATICA

Select[Range[10000], Min[Length/@Split[IntegerDigits[#, 16]]] > 1 &] (* Vincenzo Librandi, Feb 05 2014 *)


CROSSREFS

Sequence in context: A044902 A048843 A008599 * A044842 A033014 A070814
Adjacent sequences: A033026 A033027 A033028 * A033030 A033031 A033032


KEYWORD

nonn,base


AUTHOR

Clark Kimberling


STATUS

approved



