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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
OFFSET
1,2
COMMENTS
The corresponding values of x of this Pell equation are in A174761.
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
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Apr 15 2010
STATUS
approved