A040660 - OEIS

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A040660

Continued fraction for sqrt(687).

26, 4, 1, 2, 1, 16, 1, 2, 1, 4, 52, 4, 1, 2, 1, 16, 1, 2, 1, 4, 52, 4, 1, 2, 1, 16, 1, 2, 1, 4, 52, 4, 1, 2, 1, 16, 1, 2, 1, 4, 52, 4, 1, 2, 1, 16, 1, 2, 1, 4, 52, 4, 1, 2, 1, 16, 1, 2, 1, 4, 52, 4, 1, 2, 1, 16, 1, 2, 1, 4, 52, 4, 1, 2, 1, 16, 1, 2, 1, 4, 52, 4, 1, 2, 1 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,1`
	LINKS	`Index entries for continued fractions for constants`
	FORMULA	`a(n)=(1/150){-692(n mod 10)-17[(n+1) mod 10]+43[(n+2) mod 10]+13[(n+3) mod 10]+253[(n+4) mod 10]-197[(n+5) mod 10]+43[(n+6) mod 10]+13[(n+7) mod 10]+73[(n+8) mod 10]+748[(n+9) mod 10]}-26[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava (paoloplava(AT)gmail.com), May 18 2009]`
	MAPLE	`with(numtheory): Digits := 300: convert(evalf(sqrt(687)), confrac);`
	CROSSREFS	`Sequence in context: A040664 A040665 A040666 * A040661 A140871 A040662` `Adjacent sequences: A040657 A040658 A040659 * A040661 A040662 A040663`
	KEYWORD	`nonn,cofr,easy`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 16 15:27 EST 2012. Contains 205930 sequences.