A031653 Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 65.

9613, 26921, 87697, 128285, 131165, 238369, 243274, 244261, 308314, 310538, 311653, 313889, 382285, 479305, 566033, 573578, 661594, 666481, 671386, 674666, 676309, 677954, 775129, 895757, 903341, 907145, 910957, 914777, 1023082, 1029157

Offset

1,1

Links

Table of n, a(n) for n=1..30.

Crossrefs

Sequence in context: A031596 A236715 A233913 * A253520 A254418 A254425

Adjacent sequences: A031650 A031651 A031652 * A031654 A031655 A031656

Keyword

nonn

Author

David W. Wilson

Extensions

First term 4226 removed by Georg Fischer, Jun 16 2019

Status

approved