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A040361 Continued fraction for sqrt(381). 2
19, 1, 1, 12, 1, 1, 38, 1, 1, 12, 1, 1, 38, 1, 1, 12, 1, 1, 38, 1, 1, 12, 1, 1, 38, 1, 1, 12, 1, 1, 38, 1, 1, 12, 1, 1, 38, 1, 1, 12, 1, 1, 38, 1, 1, 12, 1, 1, 38, 1, 1, 12, 1, 1, 38, 1, 1, 12, 1, 1, 38, 1, 1, 12, 1, 1, 38, 1, 1, 12, 1, 1, 38, 1, 1, 12, 1, 1, 38, 1, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..80.

Index entries for continued fractions for constants

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

FORMULA

a(n)=(1/30)*{-167*(n mod 6)+18*[(n+1) mod 6]+73*[(n+2) mod 6]-37*[(n+3) mod 6]+18*[(n+4) mod 6]+203*[(n+5) mod 6]}-19*[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava, Apr 29 2009]

MAPLE

with(numtheory): Digits := 300: convert(evalf(sqrt(381)), confrac);

CROSSREFS

Sequence in context: A040364 A040363 A040362 * A174097 A174040 A176078

Adjacent sequences:  A040358 A040359 A040360 * A040362 A040363 A040364

KEYWORD

nonn,cofr,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified November 15 14:06 EST 2019. Contains 329149 sequences. (Running on oeis4.)