A031730 - OEIS

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A031730

Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 52.

1

677, 2706, 6087, 10820, 16905, 24342, 33131, 43272, 54765, 67610, 81807, 97356, 114257, 132510, 152115, 173072, 195381, 219042, 244055, 270420, 298137, 327206, 357627, 389400, 422525, 457002, 492831, 530012, 568545, 608430, 649667, 692256

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OFFSET

1,1

COMMENTS

a(n) = 676n^2 + n for n < 55, but a(55) = 1974078. - Charles R Greathouse IV, Aug 04 2017

LINKS

Charles R Greathouse IV, Table of n, a(n) for n = 1..10000

CROSSREFS

Sequence in context: A159893 A142755 A158386 * A205749 A108824 A205471

Adjacent sequences: A031727 A031728 A031729 * A031731 A031732 A031733

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved