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A042286 Numerators of continued fraction convergents to sqrt(669). 2
25, 26, 181, 388, 957, 3259, 4216, 41203, 45419, 86622, 218663, 305285, 3882083, 15833617, 19715700, 35549317, 55265017, 90814334, 146079351, 2428083950, 2574163301, 5002247251, 7576410552, 12578657803 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

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. [Bruno Berselli, Nov 22 2013]

MATHEMATICA

Numerator[Convergents[Sqrt[669], 30]] (* Vincenzo Librandi, Nov 21 2013 *)

CROSSREFS

Cf. A042287.

Sequence in context: A042282 A042280 A042284 * A042288 A042290 A042292

Adjacent sequences:  A042283 A042284 A042285 * A042287 A042288 A042289

KEYWORD

nonn,cofr,frac,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified May 7 09:55 EDT 2021. Contains 343649 sequences. (Running on oeis4.)