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A042525 Denominators of continued fraction convergents to sqrt(791). 2
1, 8, 449, 3600, 202049, 1619992, 90921601, 728992800, 40914518401, 328045140008, 18411442358849, 147619584010800, 8285108146963649, 66428484759719992, 3728280254691283201, 29892670522289985600, 1677717829502930476801, 13451635306545733800008 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

Index entries for linear recurrences with constant coefficients, signature (0, 450, 0, -1).

FORMULA

G.f.: -(x^2-8*x-1) / (x^4-450*x^2+1). - Colin Barker, Dec 17 2013

MATHEMATICA

Denominator[Convergents[Sqrt[791], 30]] (* Vincenzo Librandi, Jan 23 2014 *)

CROSSREFS

Cf. A042524, A040762.

Sequence in context: A240320 A013457 A012740 * A028449 A209840 A187049

Adjacent sequences:  A042522 A042523 A042524 * A042526 A042527 A042528

KEYWORD

nonn,frac,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Colin Barker, Dec 17 2013

STATUS

approved

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Last modified September 20 22:20 EDT 2021. Contains 347596 sequences. (Running on oeis4.)