login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A174851 y-values in the solution to x^2-46*y^2=1. 2
0, 3588, 174627960, 8499142809612, 413653280369188080, 20132505147069241043988, 979849025094206681241707880, 47689252031202534028964681475612, 2321035895378778306095504366176328160 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

The corresponding values of x of this Pell equation are in A174754.

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..200

Index entries for linear recurrences with constant coefficients, signature (48670,-1).

FORMULA

a(n) = 48670*a(n-1)-a(n-2) with a(1)=0, a(2)=3588.

G.f.: 3588*x^2/(1-48670*x+x^2).

MATHEMATICA

LinearRecurrence[{48670, -1}, {0, 3588}, 30]

PROG

(MAGMA) I:=[0, 3588]; [n le 2 select I[n] else 48670*Self(n-1)-Self(n-2): n in [1..15]];

CROSSREFS

Cf. A174754.

Sequence in context: A249289 A249537 A156845 * A284970 A183007 A251087

Adjacent sequences:  A174848 A174849 A174850 * A174852 A174853 A174854

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Apr 15 2010

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 April 20 03:36 EDT 2019. Contains 322294 sequences. (Running on oeis4.)