A042915 Denominators of continued fraction convergents to sqrt(989).

1, 2, 9, 20, 29, 339, 368, 3283, 49613, 52896, 102509, 155405, 257914, 671233, 929147, 2529527, 5988201, 14505929, 20494130, 55494189, 75988319, 131482508, 207470827, 338953335, 5291770852, 42673120151, 47964891003, 570286921184, 618251812187

Offset

0,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..200

Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1100543177121390, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).

Mathematica

Denominator/@Convergents[Sqrt[989], 30]  (* Harvey P. Dale, Apr 18 2011 *)

Crossrefs

Cf. A042914, A040957.

Sequence in context: A090939 A077338 A047883 * A007115 A154495 A248121

Adjacent sequences: A042912 A042913 A042914 * A042916 A042917 A042918

Keyword

nonn,frac,easy

Author

N. J. A. Sloane

Extensions

More terms from Vincenzo Librandi, Feb 01 2014

Status

approved