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A042906 Numerators of continued fraction convergents to sqrt(985). 2
31, 63, 94, 157, 408, 25453, 51314, 76767, 128081, 332929, 20769679, 41872287, 62641966, 104514253, 271670472, 16948083517, 34167837506, 51115921023, 85283758529, 221683438081, 13829656919551, 27880997277183, 41710654196734, 69591651473917, 180893957144568 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

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

Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 816, 0, 0, 0, 0, 1).

FORMULA

G.f.: -(x^9-31*x^8+63*x^7-94*x^6+157*x^5+408*x^4+157*x^3+94*x^2+63*x+31) / (x^10+816*x^5-1). - Colin Barker, Dec 25 2013

MATHEMATICA

Numerator[Convergents[Sqrt[985], 30]]  (* Vincenzo Librandi, Dec 09 2013 *)

CROSSREFS

Cf. A042907, A040953.

Sequence in context: A037982 A135631 A276787 * A042904 A042902 A042900

Adjacent sequences:  A042903 A042904 A042905 * A042907 A042908 A042909

KEYWORD

nonn,frac,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Colin Barker, Dec 25 2013

STATUS

approved

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Last modified May 14 10:11 EDT 2021. Contains 343880 sequences. (Running on oeis4.)