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Search: id:A031515
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A031515 Numbers n such that continued fraction for sqrt(n) has even period and central term 17. +0
1
291, 307, 311, 331, 339, 343, 347, 359, 1160, 1184, 1192, 1216, 1248, 1256, 1280, 1312, 1344, 1352, 1376, 1384, 1408, 1440, 2607, 2823, 2895, 2955, 3039, 3183, 3243, 4632, 4696, 4744, 4824, 4952, 5016, 5128, 5144, 5272, 5384, 5464, 5528, 5592, 5768, 7235 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Sequence in context: A031605 A091740 A098250 this_sequence A090890 A123913 A031695

Adjacent sequences: A031512 A031513 A031514 this_sequence A031516 A031517 A031518

KEYWORD

nonn

AUTHOR

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

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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