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

 

Logo

Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A013651 Period of continued fraction for sqrt(n) contains at least two 1's. 0
7, 13, 14, 19, 21, 22, 23, 29, 31, 32, 33, 34, 43, 44, 45, 46, 47, 52, 53, 54, 57, 58, 59, 60, 61, 62, 67, 69, 70, 71, 73, 74, 75, 76, 77, 78, 79, 85, 86, 88, 91, 92, 93, 94, 95, 96, 97, 98 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

REFERENCES

Kenneth H. Rosen, Elementary Number Theory and Its Applications, Addison-Wesley, 1984, page 426 (but beware of errors!).

LINKS

Table of n, a(n) for n=1..48.

CROSSREFS

Sequence in context: A194408 A057930 A233593 * A050931 A072864 A232437

Adjacent sequences:  A013648 A013649 A013650 * A013652 A013653 A013654

KEYWORD

nonn

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 January 18 07:18 EST 2019. Contains 319269 sequences. (Running on oeis4.)