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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A031578 Numbers n such that continued fraction for sqrt(n) has even period and central term 80. 0
6402, 6406, 6434, 6478, 6494, 6498, 6502, 6514, 6518, 6542, 6546, 6582, 6598, 6614, 6638, 6646, 6658, 6662, 6686, 6694, 6718, 6722, 14403, 14439, 14457, 14493, 14511, 14541, 14583, 14613, 14622, 14709, 14727, 14757, 14763, 14766, 14772, 14781, 14793 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..39.

CROSSREFS

Sequence in context: A237954 A269827 A270056 * A252612 A259060 A259078

Adjacent sequences:  A031575 A031576 A031577 * A031579 A031580 A031581

KEYWORD

nonn

AUTHOR

David W. Wilson

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 November 12 09:29 EST 2019. Contains 329054 sequences. (Running on oeis4.)