A040215 - OEIS

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A040215

Continued fraction for sqrt(231).

15, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30, 5, 30 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,1`
	LINKS	`Index entries for continued fractions for constants`
	FORMULA	`a(n)=(1/2)[35+25(-1)^n]-15[C(2n,n) mod 2], with n>=0 [From Paolo P. Lava (paoloplava(AT)gmail.com), Apr 23 2009]`
	MAPLE	`with(numtheory): Digits := 300: convert(evalf(sqrt(231)), confrac);`
	CROSSREFS	`Sequence in context: A051998 A131611 A166209 * A147422 A147084 A147361` `Adjacent sequences: A040212 A040213 A040214 * A040216 A040217 A040218`
	KEYWORD	`nonn,cofr,easy`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 16 07:39 EST 2012. Contains 205881 sequences.