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A043568 Number of runs in base 16 representation of n. 3
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,17

COMMENTS

Differs from A043543 if we consider for example numbers which are palindromic in base 16 with 3 (2 distinct) digits. [From R. J. Mathar, Oct 20 2008]

Every positive integers occurs infinitely many times.  See A297770 for a guide to related sequences. - Clark Kimberling, Feb 04 2018

LINKS

Clark Kimberling, Table of n, a(n) for n = 0..10000

MATHEMATICA

b = 16; s[n_] := Length[Split[IntegerDigits[n, b]]];

Table[s[n], {n, 0, 200}]

CROSSREFS

Cf. A297783 (number of distinct runs), A297770.

Sequence in context: A043542 A043567 A297784 * A043543 A237684 A130634

Adjacent sequences:  A043565 A043566 A043567 * A043569 A043570 A043571

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified November 20 10:09 EST 2019. Contains 329334 sequences. (Running on oeis4.)