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 A037970 Numbers whose maximal base-2 run length is 3. 5
 7, 8, 14, 17, 23, 24, 28, 29, 34, 35, 39, 40, 46, 49, 55, 56, 57, 58, 59, 68, 69, 70, 71, 72, 78, 81, 87, 88, 92, 93, 98, 99, 103, 104, 110, 113, 114, 115, 116, 117, 118, 119, 136, 137, 138, 139, 140, 141, 142, 145, 151, 152, 156, 157, 162, 163, 167, 168, 174 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Michael S. Branicky, Table of n, a(n) for n = 1..10000 PROG (Python) def ok(n): b = bin(n)[2:] return ("000" in b or "111" in b) and not ("0000" in b or "1111" in b) print(list(filter(ok, range(175)))) # Michael S. Branicky, Jul 08 2021 CROSSREFS Cf. A007088. Subsequence of A136037. Sequence in context: A047274 A037368 A281710 * A101517 A271953 A165465 Adjacent sequences: A037967 A037968 A037969 * A037971 A037972 A037973 KEYWORD nonn,base AUTHOR Clark Kimberling EXTENSIONS a(55) and beyond from Michael S. Branicky, Jul 08 2021 STATUS approved

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Last modified December 1 23:26 EST 2023. Contains 367503 sequences. (Running on oeis4.)