login
This site is supported by donations to The OEIS Foundation.

 

Logo

Annual appeal: Please make a donation to keep the OEIS running! Over 6000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A175268 a(n)=floor(2^sqrt(n)). 1
1, 2, 2, 3, 4, 4, 5, 6, 7, 8, 8, 9, 11, 12, 13, 14, 16, 17, 18, 20, 22, 23, 25, 27, 29, 32, 34, 36, 39, 41, 44, 47, 50, 53, 56, 60, 64, 67, 71, 75, 80, 84, 89, 94, 99, 104, 110, 115, 121, 128, 134, 141, 148, 155, 162, 170, 178, 187, 196, 205, 214, 224, 234, 245, 256, 267 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..65.

EXAMPLE

a(0)=floor(2^sqrt(0))=floor(2^0)=1,

a(1)=floor(2^sqrt(1))=floor(2)=2,

a(2)=floor(2^sqrt(2))=floor(2.665)=2.

MATHEMATICA

Floor[2^Sqrt[Range[0, 70]]] (* Harvey P. Dale, Aug 03 2016 *)

CROSSREFS

Cf. A134886 a(n)=floor(n^sqrt(2)).

Sequence in context: A286389 A103354 A127038 * A241948 A051068 A050294

Adjacent sequences:  A175265 A175266 A175267 * A175269 A175270 A175271

KEYWORD

nonn

AUTHOR

Zak Seidov, Mar 18 2010

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified November 19 03:53 EST 2017. Contains 294912 sequences.