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A040143 Continued fraction for sqrt(156). 0
12, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2, 24, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..65.

Index entries for continued fractions for constants

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

FORMULA

a(n)=13+11*(-1)^n-12*[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava, Jun 10 2009]

MAPLE

Digits := 100: convert(evalf(sqrt(N)), confrac, 90, 'cvgts'):

MATHEMATICA

ContinuedFraction[Sqrt[156], 300] (* Vladimir Joseph Stephan Orlovsky, Mar 23 2011*)

PadRight[{12}, 120, {24, 2}] (* Harvey P. Dale, Aug 26 2014 *)

CROSSREFS

Sequence in context: A183729 A238718 A303782 * A163599 A007207 A302799

Adjacent sequences:  A040140 A040141 A040142 * A040144 A040145 A040146

KEYWORD

nonn,cofr,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified July 18 10:35 EDT 2019. Contains 325138 sequences. (Running on oeis4.)