The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A366160 Numbers whose binary expansion is not quasiperiodic. 0
 1, 2, 4, 5, 6, 8, 9, 11, 12, 13, 14, 16, 17, 18, 19, 20, 22, 23, 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 35, 37, 38, 39, 40, 41, 43, 44, 46, 47, 48, 49, 50, 51, 52, 53, 55, 56, 57, 58, 59, 60, 61, 62, 64, 65, 66, 67, 68, 69, 70, 71, 72, 74, 75, 76, 77, 78, 79 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS See A320441 for the definition of quasiperiodic. All numbers 2^k + 1 >= 5 are terms (A000051). All powers of 2 are terms (A000079). LINKS Table of n, a(n) for n=1..67. PROG (Python) A000225 = lambda n: (1 << n) - 1 def isA320441(k): # Code after Michael S. Branicky, Mar 24 2022 in A320434. tt, l = 1, k.bit_length() for x in range(0, l + 1): m = A000225(x) t = k & m if (t != tt): if (t == k): return False r = k for g in range(0, x): r >>= 1 if (r & m == t) and (r == t): return True tt = t print([n for n in range(1, 80) if not isA320441(n)]) CROSSREFS Cf. A000051, A000079, A000225, A320441 (complement). Sequence in context: A171599 A328594 A346129 * A288174 A280998 A043687 Adjacent sequences: A366157 A366158 A366159 * A366161 A366162 A366163 KEYWORD nonn,base AUTHOR Darío Clavijo, Oct 02 2023 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified April 23 11:06 EDT 2024. Contains 371905 sequences. (Running on oeis4.)