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A040219 Continued fraction for sqrt(235). 2
15, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30, 3, 30 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..74.

Index entries for continued fractions for constants

Index entries for linear recurrences with constant coefficients, signature (0, 1).

FORMULA

a(n)=(1/2)*[33+27*(-1)^n]-15*[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava, Apr 23 2009]

MAPLE

with(numtheory): Digits := 300: convert(evalf(sqrt(235)), confrac);

MATHEMATICA

Block[{$MaxExtraPrecision=1000}, ContinuedFraction[Sqrt[235], 120]] (* or *) PadRight[{15}, 120, {30, 3}] (* Harvey P. Dale, Aug 25 2017 *)

CROSSREFS

Sequence in context: A225948 A248129 A256527 * A317315 A330361 A291157

Adjacent sequences:  A040216 A040217 A040218 * A040220 A040221 A040222

KEYWORD

nonn,cofr,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified October 16 20:09 EDT 2021. Contains 348044 sequences. (Running on oeis4.)