A031657 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 69.

58613, 96802, 98050, 146045, 202669, 268549, 348389, 350753, 351938, 430697, 433325, 435961, 441257, 632554, 640529, 645338, 745394, 747121, 752314, 754049, 755786, 761009, 764501, 880573, 1008857, 1024985, 1029037, 1145861, 1148002

Offset

1,1

Links

Table of n, a(n) for n=1..29.

Crossrefs

Sequence in context: A230576 A075980 A031684 * A251519 A255781 A234447

Adjacent sequences: A031654 A031655 A031656 * A031658 A031659 A031660

Keyword

nonn

Author

David W. Wilson

Extensions

First term 4762 removed by Georg Fischer, Jun 16 2019

Status

approved