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A041777 Denominators of continued fraction convergents to sqrt(409). 2
1, 4, 9, 67, 76, 143, 219, 1019, 2257, 5533, 74186, 969951, 2014088, 4998127, 22006596, 27004723, 49011319, 76016042, 581123613, 1238263268, 5534176685, 222605330668, 895955499357, 2014516329382, 14997569805031, 17012086134413, 32009655939444 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

MATHEMATICA

Denominator[Convergents[Sqrt[409], 30]] (* Vincenzo Librandi, Dec 24 2013 *)

CROSSREFS

Cf. A041776.

Sequence in context: A069020 A220189 A122956 * A100517 A327579 A041597

Adjacent sequences:  A041774 A041775 A041776 * A041778 A041779 A041780

KEYWORD

nonn,frac,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Vincenzo Librandi, Dec 24 2013

STATUS

approved

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Last modified March 5 11:57 EST 2021. Contains 341823 sequences. (Running on oeis4.)