A040406 - OEIS

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A040406

Continued fraction for sqrt(427).

20, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,1`
	LINKS	`Index entries for continued fractions for constants`
	FORMULA	`a(n)=(1/24){-191(n mod 4)+43[(n+1) mod 4]+43[(n+2) mod 4]+277[(n+3) mod 4]}-20[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava (paoloplava(AT)gmail.com), Apr 30 2009]`
	MAPLE	`with(numtheory): Digits := 300: convert(evalf(sqrt(427)), confrac);`
	CROSSREFS	`Sequence in context: A060430 A040404 A040405 * A040403 A040402 A040401` `Adjacent sequences: A040403 A040404 A040405 * A040407 A040408 A040409`
	KEYWORD	`nonn,cofr,easy`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 14 22:54 EST 2012. Contains 205685 sequences.