login
The OEIS is supported by the many generous donors to the OEIS 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
Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 25882394441081380, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).
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 A350383 A025213
KEYWORD
nonn,frac,easy
AUTHOR
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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 18 22:56 EDT 2024. Contains 370952 sequences. (Running on oeis4.)