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A043600
Numbers whose base-4 representation has exactly 9 runs.
0
69905, 69906, 69907, 69912, 69913, 69915, 69916, 69917, 69918, 69921, 69922, 69923, 69924, 69926, 69927, 69932, 69933, 69934, 69937, 69938, 69939, 69940, 69942, 69943, 69944, 69945, 69947, 70020, 70022, 70023
OFFSET
1,1
COMMENTS
Subset of A043876. - R. J. Mathar, Oct 20 2008
MATHEMATICA
Select[Range[71000], Length[Split[IntegerDigits[#, 4]]]==9&] (* Harvey P. Dale, May 23 2017 *)
CROSSREFS
Sequence in context: A069919 A116502 A190934 * A043858 A043876 A224464
KEYWORD
nonn,base
STATUS
approved