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!)
A158581 Numbers having in binary representation at least two ones and two zeros. 4
9, 10, 12, 17, 18, 19, 20, 21, 22, 24, 25, 26, 28, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 48, 49, 50, 51, 52, 53, 54, 56, 57, 58, 60, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 96, 97 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

A023416(a(n)) > 1; A000120(a(n)) > 1;

intersection of A158582 and A057716.

LINKS

R. Zumkeller, Table of n, a(n) for n = 1..10000

MATHEMATICA

Select[Range[100], Min[DigitCount[#, 2]]>1&](* Harvey P. Dale, Mar 09 2013 *)

CROSSREFS

A007088.

Sequence in context: A190665 A242475 A160947 * A343258 A078459 A156345

Adjacent sequences:  A158578 A158579 A158580 * A158582 A158583 A158584

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Apr 16 2009

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 April 20 01:20 EDT 2021. Contains 343117 sequences. (Running on oeis4.)