A041355 - OEIS

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A041355

Denominators of continued fraction convergents to sqrt(191).

2

1, 1, 5, 6, 11, 39, 89, 217, 2910, 6037, 14984, 50989, 65973, 116962, 533821, 650783, 17454179, 18104962, 89874027, 107978989, 197853016, 701538037, 1600929090, 3903396217, 52345079911, 108593556039, 269532191989, 917190132006, 1186722323995, 2103912456001

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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 (0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,17988000,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-1).

FORMULA

a(n) = 17988000*a(n-16) - a(n-32) for n>31. [Bruno Berselli, Dec 16 2013]

MATHEMATICA

Denominator[Convergents[Sqrt[191], 30]] (* Vincenzo Librandi, Dec 16 2013 *)

CROSSREFS

Sequence in context: A046830 A042493 A042217 * A041050 A332523 A041227

Adjacent sequences: A041352 A041353 A041354 * A041356 A041357 A041358

KEYWORD

nonn,frac,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Vincenzo Librandi, Dec 16 2013

STATUS

approved