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A040230 Continued fraction for sqrt(246). 2
15, 1, 2, 5, 1, 14, 1, 5, 2, 1, 30, 1, 2, 5, 1, 14, 1, 5, 2, 1, 30, 1, 2, 5, 1, 14, 1, 5, 2, 1, 30, 1, 2, 5, 1, 14, 1, 5, 2, 1, 30, 1, 2, 5, 1, 14, 1, 5, 2, 1, 30, 1, 2, 5, 1, 14, 1, 5, 2, 1, 30, 1, 2, 5, 1, 14, 1, 5, 2, 1, 30, 1, 2, 5, 1, 14, 1, 5, 2, 1, 30, 1, 2, 5, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..84.

Index entries for continued fractions for constants

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

FORMULA

a(n)=(1/450)*{-1243*(n mod 10)+107*[(n+1) mod 10]+197*[(n+2) mod 10]-118*[(n+3) mod 10]+647*[(n+4) mod 10]-523*[(n+5) mod 10]+242*[(n+6) mod 10]-73*[(n+7) mod 10]+17*[(n+8) mod 10]+1367*[(n+9) mod 10]}-15*[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava, Apr 22 2009]

MAPLE

with(numtheory): Digits := 300: convert(evalf(sqrt(246)), confrac);

MATHEMATICA

ContinuedFraction[Sqrt[246], 120] (* or *) PadRight[{15}, 120, {30, 1, 2, 5, 1, 14, 1, 5, 2, 1}] (* Harvey P. Dale, Mar 05 2018 *)

CROSSREFS

Sequence in context: A015139 A040231 A040232 * A040233 A040234 A040235

Adjacent sequences:  A040227 A040228 A040229 * A040231 A040232 A040233

KEYWORD

nonn,cofr,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified January 18 16:40 EST 2019. Contains 319271 sequences. (Running on oeis4.)