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

 

Logo

Please make a donation to keep the OEIS running. We are now in our 56th year. In the past year we added 10000 new sequences and reached almost 9000 citations (which often say "discovered thanks to the OEIS").
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A043726 Numbers n such that number of runs in the base 2 representation of n is congruent to 2 mod 4. 1
2, 4, 6, 8, 12, 14, 16, 24, 28, 30, 32, 42, 48, 56, 60, 62, 64, 74, 82, 84, 86, 90, 96, 106, 112, 120, 124, 126, 128, 138, 146, 148, 150, 154, 162, 164, 166, 168, 172, 174, 178, 180, 182, 186, 192, 202, 210, 212, 214, 218, 224, 234, 240 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

All terms are even. - Harvey P. Dale, Sep 26 2018

LINKS

Table of n, a(n) for n=1..53.

MATHEMATICA

Select[Range[2, 250, 2], Mod[Length[Split[IntegerDigits[#, 2]]], 4]==2&] (* Harvey P. Dale, Sep 26 2018 *)

CROSSREFS

Sequence in context: A043723 A331681 A006998 * A043730 A043735 A043741

Adjacent sequences:  A043723 A043724 A043725 * A043727 A043728 A043729

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 4 09:35 EST 2020. Contains 338923 sequences. (Running on oeis4.)