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!)
A041871 Denominators of continued fraction convergents to sqrt(457). 2
1, 2, 3, 5, 8, 45, 98, 1319, 1417, 5570, 6987, 33518, 40505, 74023, 336597, 410620, 1568457, 1979077, 27296458, 56571993, 310156423, 366728416, 676884839, 1043613255, 2764111349, 117136289913, 237036691175, 354172981088, 591209672263, 945382653351 (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, 118179903168, 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) = 118179903168*a(n-25) + a(n-50) for n>49. - Vincenzo Librandi, Dec 26 2013
MATHEMATICA
Denominator[Convergents[Sqrt[457], 30]] (* Vincenzo Librandi, Dec 26 2013 *)
CROSSREFS
Cf. A041870.
Sequence in context: A268480 A128485 A042471 * A061249 A042237 A042937
KEYWORD
nonn,frac,easy
AUTHOR
EXTENSIONS
More terms from Vincenzo Librandi, Dec 26 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 July 12 13:24 EDT 2024. Contains 374247 sequences. (Running on oeis4.)