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 A043719 Numbers whose base-16 representation has an odd number of runs. 2
 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 34, 51, 68, 85, 102, 119, 136, 153, 170, 187, 204, 221, 238, 255, 257, 258, 259, 260, 261, 262, 263, 264, 265, 266, 267, 268, 269, 270, 271, 273, 288, 289, 291, 292, 293, 294, 295 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Table of n, a(n) for n=1..53. PROG (Python) from itertools import groupby def ok(n): return len(list(g for k, g in groupby(hex(n)[2:])))%2 == 1 print(list(filter(ok, range(1, 296)))) # Michael S. Branicky, Jun 18 2021 CROSSREFS Sequence in context: A044965 A044827 A048313 * A296759 A029730 A297289 Adjacent sequences: A043716 A043717 A043718 * A043720 A043721 A043722 KEYWORD nonn,base AUTHOR Clark Kimberling STATUS approved

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Last modified June 1 03:55 EDT 2023. Contains 363068 sequences. (Running on oeis4.)