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A040811 Continued fraction for sqrt(840). 1
28, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56, 1, 56 (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)*[57+55*(-1)^n]-28*[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava, May 29 2009]

MAPLE

with(numtheory): Digits := 300: convert(evalf(sqrt(840)), confrac);

CROSSREFS

Sequence in context: A040808 A040809 A040810 * A051000 A132057 A292919

Adjacent sequences:  A040808 A040809 A040810 * A040812 A040813 A040814

KEYWORD

nonn,cofr,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified July 22 07:23 EDT 2019. Contains 325216 sequences. (Running on oeis4.)