The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A270888 Numbers written in binary balanced system (A270885) have exactly three zeros. 2
 8, 12, 14, 15, 33, 34, 35, 36, 38, 39, 40, 44, 46, 47, 49, 50, 51, 52, 54, 55, 57, 58, 59, 61, 133, 137, 138, 139, 141, 145, 146, 147, 148, 150, 151, 153, 154, 155, 157, 161, 162, 163, 164, 166, 167, 168, 172, 174, 175, 177, 178, 179, 180, 182, 183, 185, 186 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Vladimir Shevelev, Two analogs of Thue-Morse sequence, arXiv:1603.04434 [math.NT], 2016. EXAMPLE 14 = 2^3+2^2+2 = 2^4-2^3+2^3-2^2+2^2-2 = 2^4-2 = 100-10_b. So, 14 is a member. MATHEMATICA Select[Range@ 186, Count[Plus @@ {PadRight[#, Length@ # + 1], -PadLeft[#, Length@ # + 1]} &@ IntegerDigits[#, 2], 0] == 3 &] (* Michael De Vlieger, Mar 25 2016 *) CROSSREFS Cf. A270885, A270886, A270887. Sequence in context: A290135 A225533 A143845 * A281014 A048868 A244723 Adjacent sequences:  A270885 A270886 A270887 * A270889 A270890 A270891 KEYWORD nonn,base AUTHOR Vladimir Shevelev, Mar 25 2016 EXTENSIONS More terms from Peter J. C. Moses, Mar 25 2016 STATUS approved

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

Last modified January 22 07:39 EST 2020. Contains 331139 sequences. (Running on oeis4.)