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A040419 Continued fraction for sqrt(440). +0
1
20, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40, 1, 40 (list; graph; listen)
OFFSET

0,1

LINKS

Index entries for continued fractions for constants

FORMULA

a(n)=(1/2)*[41+39*(-1)^n]-20*[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava (ppl(AT)spl.at), Apr 30 2009]

MAPLE

with(numtheory): Digits := 300: convert(evalf(sqrt(440)), confrac);

CROSSREFS

Sequence in context: A084923 A141589 A162153 this_sequence A164812 A040395 A040394

Adjacent sequences: A040416 A040417 A040418 this_sequence A040420 A040421 A040422

KEYWORD

nonn,cofr,easy

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.


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