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A042167 Denominators of continued fraction convergents to sqrt(608). 2
1, 1, 2, 3, 35, 38, 73, 111, 5401, 5512, 10913, 16425, 191588, 208013, 399601, 607614, 29565073, 30172687, 59737760, 89910447, 1048752677, 1138663124, 2187415801, 3326078925, 161839204201, 165165283126, 327004487327, 492169770453, 5740871962310 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

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, 0, 0, 0, 5474, 0, 0, 0, 0, 0, 0, 0, -1).

FORMULA

G.f.: -(x^2-x-1)*(x^4+3*x^2+1)*(x^8+37*x^4+1) / ((x^8-74*x^4+1)*(x^8+74*x^4+1)). - Colin Barker, Dec 03 2013

MATHEMATICA

Denominator[Convergents[Sqrt[608], 30]] (* Vincenzo Librandi, Jan 16 2014_ *)

CROSSREFS

Cf. A042166, A040583.

Sequence in context: A025136 A195030 A092981 * A126910 A143887 A141503

Adjacent sequences:  A042164 A042165 A042166 * A042168 A042169 A042170

KEYWORD

nonn,frac,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Colin Barker, Dec 03 2013

STATUS

approved

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Last modified April 21 07:53 EDT 2019. Contains 322327 sequences. (Running on oeis4.)