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!)
A041719 Denominators of continued fraction convergents to sqrt(379). 2
1, 2, 15, 47, 109, 265, 1699, 20653, 22352, 110061, 132413, 242474, 374887, 1367135, 5843427, 112392248, 455412419, 1478629505, 1934041924, 3412671429, 5346713353, 24799524841, 30146238194, 386554383169, 2349472537208, 5085499457585, 12520471452378 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

FORMULA

a(n) = 25882394441081380*a(n-30) - a(n-60) for n>59. - Vincenzo Librandi, Dec 23 2013

MAPLE

convert(sqrt(379), confrac, 30, cvgts): denom(cvgts); # Wesley Ivan Hurt, Dec 23 2013

MATHEMATICA

Denominator[Convergents[Sqrt[379], 30]] (* Vincenzo Librandi, Dec 23 2013 *)

CROSSREFS

Cf. A041718.

Sequence in context: A323685 A336209 A256328 * A133777 A025213 A290631

Adjacent sequences:  A041716 A041717 A041718 * A041720 A041721 A041722

KEYWORD

nonn,frac,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Vincenzo Librandi, Dec 23 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 July 25 16:03 EDT 2021. Contains 346291 sequences. (Running on oeis4.)