login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A042579 Denominators of continued fraction convergents to sqrt(818). 2
1, 1, 2, 3, 5, 283, 288, 571, 859, 1430, 80939, 82369, 163308, 245677, 408985, 23148837, 23557822, 46706659, 70264481, 116971140, 6620648321, 6737619461, 13358267782, 20095887243, 33454155025, 1893528568643, 1926982723668, 3820511292311, 5747494015979 (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, 286, 0, 0, 0, 0, 1).

FORMULA

G.f.: -(x^4-3*x^3+4*x^2-2*x+1)*(x^4+2*x^3+4*x^2+3*x+1) / (x^10+286*x^5-1). - Colin Barker, Dec 18 2013

MATHEMATICA

Denominator[Convergents[Sqrt[818], 30]] (* Vincenzo Librandi, Jan 25 2014 *)

LinearRecurrence[{0, 0, 0, 0, 286, 0, 0, 0, 0, 1}, {1, 1, 2, 3, 5, 283, 288, 571, 859, 1430}, 30] (* Harvey P. Dale, Jun 15 2014 *)

CROSSREFS

Cf. A042578, A040789.

Sequence in context: A038526 A082755 A042067 * A033090 A303371 A046474

Adjacent sequences:  A042576 A042577 A042578 * A042580 A042581 A042582

KEYWORD

nonn,frac,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Colin Barker, Dec 18 2013

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified February 28 11:08 EST 2020. Contains 332323 sequences. (Running on oeis4.)