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A042287 Denominators of continued fraction convergents to sqrt(669). 2
1, 1, 7, 15, 37, 126, 163, 1593, 1756, 3349, 8454, 11803, 150090, 612163, 762253, 1374416, 2136669, 3511085, 5647754, 93875149, 99522903, 193398052, 292920955, 486319007, 779239962, 3603278855, 44018586222, 47621865077, 139262316376, 186884181453 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

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

FORMULA

a(n) = 28452235718108270*a(n-38) - a(n-76) for n>75. Vincenzo Librandi, Jan 19 2014

MATHEMATICA

Denominator[Convergents[Sqrt[669], 30]] (* Vincenzo Librandi, Jan 19 2014 *)

CROSSREFS

Cf. A042286.

Sequence in context: A146044 A048694 A041094 * A309732 A309493 A145978

Adjacent sequences:  A042284 A042285 A042286 * A042288 A042289 A042290

KEYWORD

nonn,frac,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Vincenzo Librandi, Jan 19 2014

STATUS

approved

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Last modified June 23 08:13 EDT 2021. Contains 345395 sequences. (Running on oeis4.)