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A031529 Numbers n such that continued fraction for sqrt(n) has even period and central term 31. 0
963, 967, 971, 983, 991, 1003, 1019, 1031, 1039, 1051, 1059, 1063, 1087, 3848, 3880, 3904, 3936, 3944, 4000, 4040, 4072, 4168, 4192, 4256, 4264, 4288, 4320, 4328, 4352, 8655, 8727, 8787, 8871, 8943, 9003, 9147, 9303, 9375, 9663, 9795, 15384, 15448 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

CROSSREFS

Sequence in context: A158414 A031740 A031619 * A031709 A158413 A093232

Adjacent sequences:  A031526 A031527 A031528 * A031530 A031531 A031532

KEYWORD

nonn

AUTHOR

David W. Wilson (davidwwilson(AT)comcast.net)

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Last modified February 15 07:19 EST 2012. Contains 205703 sequences.