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A042048 Numerators of continued fraction convergents to sqrt(548). 2
23, 47, 117, 398, 515, 2973, 3488, 37853, 41341, 244558, 285899, 1102255, 2490409, 6083073, 282311767, 570706607, 1423724981, 4841881550, 6265606531, 36169914205, 42435520736, 460525121565 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

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, 12166146, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).

FORMULA

a(n) = 12166146*a(n-14) - a(n-28). - Wesley Ivan Hurt, Sep 05 2022

MATHEMATICA

Numerator[Convergents[Sqrt[548], 30]] (* Vincenzo Librandi, Nov 14 2013 *)

CROSSREFS

Cf. A042049.

Sequence in context: A039374 A043197 A043977 * A347008 A239563 A241207

Adjacent sequences:  A042045 A042046 A042047 * A042049 A042050 A042051

KEYWORD

nonn,cofr,frac,easy,less

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified November 26 10:15 EST 2022. Contains 358356 sequences. (Running on oeis4.)