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A031565
Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 67.
0
4491, 4499, 4507, 4519, 4523, 4539, 4547, 4567, 4579, 4583, 4587, 4591, 4603, 4639, 4643, 4651, 4659, 4663, 4679, 4691, 4703, 4707, 4723, 4731, 4751, 4759, 17960, 17992, 18016, 18048, 18056, 18080, 18112, 18152, 18208, 18272, 18280, 18304, 18344, 18376
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
Table of n, a(n) for n=1..40.
CROSSREFS
Sequence in context: A232200 A345600 A345859 * A031745 A225625 A184465
Adjacent sequences: A031562 A031563 A031564 * A031566 A031567 A031568
KEYWORD
nonn
AUTHOR
David W. Wilson
STATUS
approved

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Last modified September 30 04:51 EDT 2024. Contains 376325 sequences.
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