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A020357 Numbers k such that the continued fraction for sqrt(k) has period 18. 0
139, 163, 283, 417, 419, 424, 519, 549, 562, 566, 633, 657, 758, 781, 787, 805, 808, 831, 873, 879, 951, 976, 998, 999, 1000, 1005, 1012, 1048, 1142, 1163, 1185, 1199, 1209, 1210, 1274, 1281, 1286, 1307, 1310, 1337, 1362, 1377, 1379, 1411, 1426, 1432, 1492 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..47.

CROSSREFS

Sequence in context: A308796 A334564 A325075 * A050967 A071382 A290450

Adjacent sequences:  A020354 A020355 A020356 * A020358 A020359 A020360

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified December 6 09:10 EST 2021. Contains 349563 sequences. (Running on oeis4.)