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A031577 that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 79. 0
6243, 6247, 6259, 6263, 6267, 6271, 6287, 6291, 6299, 6311, 6319, 6323, 6343, 6347, 6359, 6367, 6379, 6387, 6403, 6427, 6439, 6443, 6451, 6459, 6463, 6483, 6491, 6499, 6503, 6523, 6547, 6551, 6559, 24968, 24992, 25000, 25056, 25064, 25088, 25096 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..40.

CROSSREFS

Sequence in context: A028545 A173943 A071130 * A031757 A195524 A045187

Adjacent sequences:  A031574 A031575 A031576 * A031578 A031579 A031580

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified October 22 07:06 EDT 2021. Contains 348160 sequences. (Running on oeis4.)