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A042319 Denominators of continued fraction convergents to sqrt(686). 1
1, 5, 21, 26, 47, 167, 381, 3977, 103783, 1041807, 2187397, 7603998, 9791395, 17395393, 79372967, 414260228, 21620904823, 108518784343, 455696042195, 564214826538, 1019910868733, 3623947432737 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

MATHEMATICA

Denominator[Convergents[Sqrt[686], 30]] (* From Harvey P. Dale, Jan 15 2012 *)

CROSSREFS

Cf. A042318.

Sequence in context: A099654 A195959 A176300 * A186304 A074074 A006309

Adjacent sequences:  A042316 A042317 A042318 * A042320 A042321 A042322

KEYWORD

nonn,cofr,easy

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 17 10:05 EST 2012. Contains 206009 sequences.