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A041977 Denominators of continued fraction convergents to sqrt(511). 3
1, 1, 2, 3, 5, 33, 38, 565, 2298, 2863, 62421, 65284, 323557, 4595082, 4918639, 34106916, 39025555, 73132471, 112158026, 185290497, 8264939894, 8450230391, 16715170285, 25165400676, 41880570961, 276448826442, 318329397403, 4733060390084, 19250570957739 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

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

FORMULA

a(n) = 8377097920*a(n-20) - a(n-40) for n>39. [Bruno Berselli, Jan 11 2014]

MATHEMATICA

Denominator[Convergents[Sqrt[511], 30]] (* Vincenzo Librandi, Jan 11 2014 *)

CROSSREFS

Cf. A041976.

Sequence in context: A241722 A276043 A041019 * A261130 A271387 A089213

Adjacent sequences:  A041974 A041975 A041976 * A041978 A041979 A041980

KEYWORD

nonn,frac,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Vincenzo Librandi, Jan 11 2014

STATUS

approved

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Last modified June 25 05:41 EDT 2019. Contains 324346 sequences. (Running on oeis4.)