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A031639 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 51. 0
32449, 52981, 54370, 80777, 110393, 150769, 151546, 191258, 192133, 236557, 238505, 242425, 289885, 296377, 348629, 352178, 356938, 407669, 411506, 412789, 414074, 417941, 420529, 479593, 487933, 548441, 554377, 560345, 566345, 629810 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

CROSSREFS

Sequence in context: A156421 A156423 A236656 * A233680 A243857 A028240

Adjacent sequences:  A031636 A031637 A031638 * A031640 A031641 A031642

KEYWORD

nonn

AUTHOR

David W. Wilson

EXTENSIONS

First term 2602 removed by Georg Fischer, Jun 16 2019

STATUS

approved

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Last modified May 27 16:48 EDT 2022. Contains 354110 sequences. (Running on oeis4.)