A031595 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 97.

9411, 9419, 9427, 9431, 9439, 9459, 9463, 9467, 9479, 9491, 9511, 9523, 9527, 9531, 9539, 9547, 9551, 9563, 9571, 9587, 9619, 9623, 9627, 9631, 9643, 9651, 9679, 9691, 9703, 9707, 9719, 9727, 9739, 9743, 9767, 9771, 9787, 9791, 9799, 37640, 37672

Offset

1,1

Links

Table of n, a(n) for n=1..41.

Crossrefs

Sequence in context: A231763 A206251 A264340 * A031775 A143367 A234432

Adjacent sequences: A031592 A031593 A031594 * A031596 A031597 A031598

Keyword

nonn

Author

David W. Wilson

Status

approved