A042317 Denominators of continued fraction convergents to sqrt(685).

1, 5, 6, 23, 29, 371, 1142, 2655, 6452, 22011, 270584, 292595, 1148369, 1440964, 8353189, 435806792, 2187387149, 2623193941, 10056968972, 12680162913, 162218923928, 499336934697, 1160892793322, 2821122521341, 9624260357345, 118312246809481

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, 437247756, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1).

Mathematica

Denominator[Convergents[Sqrt[685], 30]] (* Vincenzo Librandi, Jan 20 2014 *)

Crossrefs

Cf. A042316.

Sequence in context: A030672 A030682 A042605 * A042027 A042283 A047186

Adjacent sequences: A042314 A042315 A042316 * A042318 A042319 A042320

Keyword

nonn,frac,easy

Author

N. J. A. Sloane.

Extensions

More terms from Vincenzo Librandi, Jan 20 2014

Status

approved