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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A031781 Period of continued fraction for sqrt(n) contains exactly 13 ones. 0
1219, 1591, 2071, 2107, 3375, 3655, 4175, 4399, 4671, 4847, 4888, 4891, 5319, 5395, 6208, 7067, 7144, 7515, 11800, 12328, 12875, 12947, 13144, 13199, 13511, 14027, 14319, 15151, 15272, 16120, 16403, 17331, 17759, 17936, 18483, 19327, 19527, 19691 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

CROSSREFS

Sequence in context: A059669 A032628 A175964 * A069400 A015279 A179140

Adjacent sequences:  A031778 A031779 A031780 * A031782 A031783 A031784

KEYWORD

nonn

AUTHOR

David W. Wilson (davidwwilson(AT)comcast.net)

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 15 11:25 EST 2012. Contains 205777 sequences.