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A175049 y-values in the solution to x^2-59*y^2=1. 2
0, 69, 73140, 77528331, 82179957720, 87110677654869, 92337236134203420, 97877383191577970331, 103749933845836514347440, 109974831999203513630316069, 116573218169221878611620685700 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

The corresponding values of x of this Pell equation are in A174761.

LINKS

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

Index entries for linear recurrences with constant coefficients, signature (1060,-1).

FORMULA

a(n) = 1060*a(n-1)-a(n-2) with a(1)=0, a(2)=69.

G.f.: 69*x^2/(1-1060*x+x^2).

MATHEMATICA

LinearRecurrence[{1060, -1}, {0, 69}, 30]

PROG

(MAGMA) I:=[0, 69]; [n le 2 select I[n] else 1060*Self(n-1)-Self(n-2): n in [1..20]];

CROSSREFS

Cf. A174761.

Sequence in context: A297768 A268847 A211212 * A116099 A116238 A136114

Adjacent sequences:  A175046 A175047 A175048 * A175050 A175051 A175052

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Apr 15 2010

STATUS

approved

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Last modified August 14 15:34 EDT 2022. Contains 356122 sequences. (Running on oeis4.)