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A031627 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 39. 0
9629, 31057, 31765, 32122, 66733, 86074, 110513, 111178, 112514, 114533, 138745, 140237, 168541, 170185, 173497, 203029, 205738, 209378, 238769, 239746, 241706, 242689, 243674, 244661, 246641, 248629, 249626, 323465, 325741, 328025 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

CROSSREFS

Subsequence of A003814.

Sequence in context: A254418 A254425 A237231 * A252128 A237674 A183851

Adjacent sequences:  A031624 A031625 A031626 * A031628 A031629 A031630

KEYWORD

nonn

AUTHOR

David W. Wilson

EXTENSIONS

First term 1522 removed by Georg Fischer, Jun 16 2019

STATUS

approved

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Last modified September 28 09:11 EDT 2022. Contains 357068 sequences. (Running on oeis4.)