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A042227 Denominators of continued fraction convergents to sqrt(639). 1
1, 3, 4, 7, 18, 79, 334, 413, 1986, 2399, 11582, 48727, 109036, 157763, 266799, 958160, 48174799, 145482557, 193657356, 339139913, 871937182, 3826888641, 16179491746, 20006380387, 96205013294, 116211393681 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

CROSSREFS

Cf. A042226.

Sequence in context: A041593 A109749 A041497 * A117789 A169892 A113534

Adjacent sequences:  A042224 A042225 A042226 * A042228 A042229 A042230

KEYWORD

nonn,cofr,easy

AUTHOR

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

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Last modified February 17 19:03 EST 2012. Contains 206080 sequences.