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 A269003 Numbers having the same parity of numbers of 1's in bases 2 and -2. 1
 0, 1, 4, 5, 10, 11, 16, 17, 20, 21, 26, 27, 34, 35, 38, 39, 40, 41, 44, 45, 46, 47, 50, 51, 58, 59, 64, 65, 68, 69, 74, 75, 80, 81, 84, 85, 90, 91, 98, 99, 102, 103, 104, 105, 108, 109, 110, 111, 114, 115, 122, 123, 130, 131, 134, 135, 136, 137, 140, 141, 142 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS Or the numbers n for which the number of 1's in A039724(n) and the number of 1's in the binary expansion of n have the same parity. The sequence contains the Moser-de Bruijn numbers (A000695) as a subsequence. The first differences are: 1, 3, 1, 5, 1, 5, 1, 3, 1, 5, 1, 7, 1, 3, 1, 1, 1, 3, 1, 1, 1, 3, 1, 7, 1, 5, 1, 3, 1, 5, 1, 5, 1, 3, 1, 5, 1, 7, 1, 3, 1, 1, 1, 3, 1, 1, 1, 3, 1, 7, 1, 7, 1, 3, 1, 1, 1, 3, 1, 1, 1, 3, 1, 3, 1, 1, 1, 3, 1, 1, 1, 1, 1, 3, 1, 5, 1, 5, 1, 3, 1, 1, 1, 1, 1, 3, 1, ... Is this sequence unbounded? LINKS Vladimir Shevelev, Two analogs of Thue-Morse sequence, arXiv:1603.04434 [math.NT], 2016. Eric Weisstein's World of Mathematics, Moser-de Bruijn Sequence Eric Weisstein's World of Mathematics, Negabinary CROSSREFS Cf. A010060, A039724, A000695, A268865, A268866. Sequence in context: A102856 A285135 A037353 * A246390 A047257 A151735 Adjacent sequences:  A269000 A269001 A269002 * A269004 A269005 A269006 KEYWORD nonn,base AUTHOR Vladimir Shevelev, Feb 17 2016 EXTENSIONS More terms from Peter J. C. Moses, Feb 17 2016 STATUS approved

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Last modified July 17 18:47 EDT 2019. Contains 325109 sequences. (Running on oeis4.)