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A040430 Continued fraction for sqrt(452). 2
21, 3, 1, 5, 3, 10, 3, 5, 1, 3, 42, 3, 1, 5, 3, 10, 3, 5, 1, 3, 42, 3, 1, 5, 3, 10, 3, 5, 1, 3, 42, 3, 1, 5, 3, 10, 3, 5, 1, 3, 42, 3, 1, 5, 3, 10, 3, 5, 1, 3, 42, 3, 1, 5, 3, 10, 3, 5, 1, 3, 42, 3, 1, 5, 3, 10, 3, 5, 1, 3, 42, 3, 1, 5, 3, 10, 3, 5, 1, 3, 42, 3, 1, 5, 3 (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)*{-1679*(n mod 10)-14*[(n+1) mod 10]+256*[(n+2) mod 10]-14*[(n+3) mod 10]+391*[(n+4) mod 10]-239*[(n+5) mod 10]+166*[(n+6) mod 10]+104*[(n+7) mod 10]+166*[(n+8) mod 10]+1831*[(n+9) mod 10]}-21*[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava, Apr 30 2009]

MAPLE

with(numtheory): Digits := 300: convert(evalf(sqrt(452)), confrac);

CROSSREFS

Sequence in context: A083122 A040440 A040431 * A040432 A035419 A218249

Adjacent sequences:  A040427 A040428 A040429 * A040431 A040432 A040433

KEYWORD

nonn,cofr,easy,less

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified August 22 21:31 EDT 2019. Contains 326209 sequences. (Running on oeis4.)