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.

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

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