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A042743 Denominators of continued fraction convergents to sqrt(902). 2
1, 30, 1801, 54060, 3245401, 97416090, 5848210801, 175543740120, 10538472618001, 316329722280150, 18990321809427001, 570025984005090180, 34220549362114837801, 1027186506847450224210, 61665410960209128290401, 1850989515313121298936240 (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 (0,1802,0,-1).

FORMULA

G.f.: -(x^2-30*x-1) / (x^4-1802*x^2+1). - Colin Barker, Dec 22 2013

MATHEMATICA

Denominator[Convergents[Sqrt[902], 30]] (* Vincenzo Librandi, Jan 28 2014 *)

CROSSREFS

Cf. A042742, A040871.

Sequence in context: A108298 A202384 A202369 * A042740 A282126 A112003

Adjacent sequences:  A042740 A042741 A042742 * A042744 A042745 A042746

KEYWORD

nonn,frac,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

Additional term from Colin Barker, Dec 22 2013

STATUS

approved

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Last modified August 15 16:02 EDT 2020. Contains 336505 sequences. (Running on oeis4.)