A031646 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 58.

7753, 21341, 69250, 105097, 143053, 144569, 146093, 190321, 191194, 195589, 247298, 248293, 307277, 313961, 377437, 446753, 456154, 460213, 527701, 530609, 534986, 536449, 537914, 542321, 624829, 713177, 719945, 730157, 810961, 812762

Offset

1,1

Links

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

Crossrefs

Sequence in context: A116335 A115440 A321037 * A252556 A028538 A354976

Adjacent sequences: A031643 A031644 A031645 * A031647 A031648 A031649

Keyword

nonn

Author

David W. Wilson

Extensions

First term 3365 removed by Georg Fischer, Jun 16 2019

Status

approved