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A041871 Denominators of continued fraction convergents to sqrt(457). 2
1, 2, 3, 5, 8, 45, 98, 1319, 1417, 5570, 6987, 33518, 40505, 74023, 336597, 410620, 1568457, 1979077, 27296458, 56571993, 310156423, 366728416, 676884839, 1043613255, 2764111349, 117136289913, 237036691175, 354172981088, 591209672263, 945382653351 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 118179903168, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1).

FORMULA

a(n) = 118179903168*a(n-25) + a(n-50) for n>49. - Vincenzo Librandi, Dec 26 2013

MATHEMATICA

Denominator[Convergents[Sqrt[457], 30]] (* Vincenzo Librandi, Dec 26 2013 *)

CROSSREFS

Cf. A041870.

Sequence in context: A268480 A128485 A042471 * A061249 A042237 A042937

Adjacent sequences:  A041868 A041869 A041870 * A041872 A041873 A041874

KEYWORD

nonn,frac,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Vincenzo Librandi, Dec 26 2013

STATUS

approved

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Last modified October 17 19:18 EDT 2019. Contains 328127 sequences. (Running on oeis4.)