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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A045023 Numbers n with property that in base 4 representation the numbers of 0's and 1's are 2 and 0, respectively. 2

%I

%S 32,48,130,131,136,140,160,176,194,195,200,204,224,240,522,523,526,

%T 527,546,547,552,556,562,563,568,572,642,643,648,652,672,688,706,707,

%U 712,716,736,752,778,779,782,783,802,803,808,812

%N Numbers n with property that in base 4 representation the numbers of 0's and 1's are 2 and 0, respectively.

%H Vincenzo Librandi, <a href="/A045023/b045023.txt">Table of n, a(n) for n = 1..2000</a>

%t Select[Range[1000], DigitCount[#, 4, 0] == 2 &&DigitCount[#, 4, 1] == 0 &] (* _Vincenzo Librandi_, Sep 21 2016 *)

%K nonn,base

%O 1,1

%A _Clark Kimberling_

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 July 24 06:56 EDT 2021. Contains 346273 sequences. (Running on oeis4.)