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A042307 Denominators of continued fraction convergents to sqrt(680). 1
1, 13, 677, 8814, 459005, 5975879, 311204713, 4051637148, 210996336409, 2747004010465, 143055204880589, 1862464667458122, 96991217912702933, 1262748297532596251, 65759902689607707985, 856141483262432800056 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

CROSSREFS

Cf. A042306.

Sequence in context: A068232 A092547 A157027 * A012746 A113093 A195576

Adjacent sequences:  A042304 A042305 A042306 * A042308 A042309 A042310

KEYWORD

nonn,cofr,easy

AUTHOR

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

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Last modified February 17 21:13 EST 2012. Contains 206085 sequences.