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A176387 y-values in the solution to x^2-74*y^2=1. 2
0, 430, 3181140, 23534073290, 174105071018280, 1288029291859162150, 9528840527069010567420, 70494360931227248318611010, 521517272640378655992073684560 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

The corresponding values of x of this Pell equation are in A176386.

LINKS

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

Index entries for linear recurrences with constant coefficients, signature (7398,-1).

FORMULA

a(n) = 7398*a(n-1)-a(n-2) with a(1)=0, a(2)=430.

G.f.: 430*x^2/(1-7398*x+x^2).

MATHEMATICA

LinearRecurrence[{7398, -1}, {0, 430}, 20]

PROG

(MAGMA) I:=[0, 430]; [n le 2 select I[n] else 7398*Self(n-1)-Self(n-2): n in [1..10]];

CROSSREFS

Cf. A176386.

Sequence in context: A203545 A230574 A208627 * A160518 A273807 A323047

Adjacent sequences:  A176384 A176385 A176386 * A176388 A176389 A176390

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Apr 16 2010

STATUS

approved

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Last modified September 18 01:39 EDT 2021. Contains 347504 sequences. (Running on oeis4.)