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A042819

Denominators of continued fraction convergents to sqrt(940).

1, 1, 2, 3, 44, 47, 91, 138, 8371, 8509, 16880, 25389, 372326, 397715, 770041, 1167756, 70835401, 72003157, 142838558, 214841715, 3150622568, 3365464283, 6516086851, 9881551134, 599409154891, 609290706025, 1208699860916, 1817990566941, 26660567798090

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OFFSET

0,3

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..200

Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 0, 0, 0, 8462, 0, 0, 0, 0, 0, 0, 0, -1).

FORMULA

G.f.: -(x^2-x-1)*(x^4+3*x^2+1)*(x^8+46*x^4+1) / ((x^8-92*x^4+1)*(x^8+92*x^4+1)). - Colin Barker, Dec 24 2013

MATHEMATICA

Denominator[Convergents[Sqrt[940], 30]] (* Vincenzo Librandi, Jan 30 2014 *)

CROSSREFS

Cf. A042818, A040909.