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A174775 y-values in the solution to x^2 - 37*y^2 = 1. 2
0, 12, 1752, 255780, 37342128, 5451694908, 795910114440, 116197425013332, 16964028141832032, 2476631911282463340, 361571295019097815608, 52786932440876998615428, 7706530565073022700036880 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

The corresponding values of x of this Pell equation are in A174747.

LINKS

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

Index entries for linear recurrences with constant coefficients, signature (146,-1).

FORMULA

a(n) = 146*a(n-1)-a(n-2) with a(1)=0, a(2)=12.

G.f.: 12*x^2/(1-146*x+x^2).

MATHEMATICA

LinearRecurrence[{146, -1}, {0, 12}, 30]

PROG

(Magma) I:=[0, 12]; [n le 2 select I[n] else 146*Self(n-1)-Self(n-2): n in [1..20]];

CROSSREFS

Cf. A174747.

Sequence in context: A013717 A252767 A015485 * A145186 A160304 A013479

Adjacent sequences: A174772 A174773 A174774 * A174776 A174777 A174778

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Apr 15 2010

STATUS

approved

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Last modified February 3 17:00 EST 2023. Contains 360044 sequences. (Running on oeis4.)