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Search: id:A031588
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A031588 Numbers n such that continued fraction for sqrt(n) has even period and central term 90. +0
1
8102, 8114, 8126, 8158, 8166, 8182, 8194, 8198, 8222, 8254, 8258, 8262, 8278, 8302, 8306, 8318, 8338, 8342, 8402, 8406, 8414, 8422, 8434, 8438, 8454, 8462, 18228, 18237, 18273, 18291, 18294, 18366, 18372, 18393, 18399, 18417, 18429, 18453, 18489, 18507 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Sequence in context: A013378 A013458 A031678 this_sequence A145657 A163045 A069368

Adjacent sequences: A031585 A031586 A031587 this_sequence A031589 A031590 A031591

KEYWORD

nonn

AUTHOR

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

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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