A042155 Denominators of continued fraction convergents to sqrt(602).

1, 1, 2, 13, 15, 28, 1359, 1387, 2746, 17863, 20609, 38472, 1867265, 1905737, 3773002, 24543749, 28316751, 52860500, 2565620751, 2618481251, 5184102002, 33723093263, 38907195265, 72630288528, 3525161044609, 3597791333137, 7122952377746, 46335505599613

Offset

0,3

Links

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

Index entries for linear recurrences with constant coefficients, signature (0,0,0,0,0,1374,0,0,0,0,0,-1).

Formula

G.f.: -(x^2-2*x-1)*(x^4-x^3+2*x^2+x+1)*(x^4+2*x^3+5*x^2-2*x+1) / (x^12-1374*x^6+1). - Colin Barker, Nov 19 2013

Mathematica

Denominator[Convergents[Sqrt[602], 30]] (* Vincenzo Librandi, Jan 15 2014 *)

Crossrefs

Cf. A042154, A040577.

Sequence in context: A356102 A022116 A041201 * A295336 A042253 A381125

Adjacent sequences: A042152 A042153 A042154 * A042156 A042157 A042158

Keyword

nonn,frac,easy

Author

N. J. A. Sloane.

Extensions

More terms from Colin Barker, Nov 19 2013

Status

approved