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

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A164708 Those positive integers missing from sequence A164707. Those positive integers that, when written in binary, contain at least two runs of 1's that are of differing lengths. 1

%I #9 May 28 2016 11:13:26

%S 11,13,19,22,23,25,26,29,35,38,39,43,44,45,46,47,49,50,52,53,55,57,58,

%T 59,61,67,70,71,75,76,77,78,79,83,86,87,88,89,90,91,92,93,94,95,97,98,

%U 100,101,103,104,105,106,107,109,110,111,113,114,115,116,117,118,121

%N Those positive integers missing from sequence A164707. Those positive integers that, when written in binary, contain at least two runs of 1's that are of differing lengths.

%C Clarification: A binary number consists of "runs" completely of 1's alternating with runs completely of 0's. No two or more runs all of the same digit are adjacent.

%t Select[Range[200],Length[Union[Length/@Select[Split[IntegerDigits[ #,2]], MemberQ[ #,1]&]]]>1&] (* _Harvey P. Dale_, May 28 2016 *)

%Y A164707

%K base,nonn

%O 1,1

%A _Leroy Quet_, Aug 23 2009

%E More terms from _Max Alekseyev_, Feb 03 2010

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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 23 16:40 EDT 2024. Contains 371916 sequences. (Running on oeis4.)