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A020361 Numbers k such that the continued fraction for sqrt(k) has period 22. 1
166, 253, 466, 489, 491, 517, 523, 596, 597, 637, 643, 662, 664, 763, 771, 834, 893, 931, 932, 947, 971, 1059, 1187, 1194, 1204, 1266, 1334, 1375, 1412, 1427, 1457, 1558, 1563, 1566, 1571, 1667, 1734, 1749, 1798, 1835, 1843, 1963, 1972, 1986, 2001, 2068, 2082 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..1000

MATHEMATICA

With[{nn=2100}, Select[Complement[Range[nn], Range[Floor[Sqrt[nn]]]^2], Length[ContinuedFraction[Sqrt[#]][[2]]]==22&]] (* Harvey P. Dale, Feb 02 2012 *)

CROSSREFS

Sequence in context: A261261 A261288 A038007 * A256643 A250735 A105987

Adjacent sequences:  A020358 A020359 A020360 * A020362 A020363 A020364

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified October 22 22:35 EDT 2021. Contains 348180 sequences. (Running on oeis4.)