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A043734
Numbers whose number of runs in the base-2 representation is congruent to 1 mod 6.
1
1, 3, 7, 15, 31, 63, 85, 127, 149, 165, 169, 171, 173, 181, 213, 255, 277, 293, 297, 299, 301, 309, 325, 329, 331, 333, 337, 339, 343, 345, 347, 349, 357, 361, 363, 365, 373, 405, 421, 425, 427, 429, 437, 469, 511, 533, 549, 553
OFFSET
1,2
LINKS
MATHEMATICA
Select[Range[1000], Mod[Length[Split[IntegerDigits[#, 2]]], 6]==1&] (* Harvey P. Dale, Apr 08 2017 *)
CROSSREFS
Sequence in context: A224521 A269167 A261586 * A151359 A147596 A115567
KEYWORD
nonn,base
STATUS
approved