id:A040613 - OEIS Search Results

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Continued fraction for sqrt(639).

+0
1

25, 3, 1, 1, 2, 4, 4, 1, 4, 1, 4, 4, 2, 1, 1, 3, 50, 3, 1, 1, 2, 4, 4, 1, 4, 1, 4, 4, 2, 1, 1, 3, 50, 3, 1, 1, 2, 4, 4, 1, 4, 1, 4, 4, 2, 1, 1, 3, 50, 3, 1, 1, 2, 4, 4, 1, 4, 1, 4, 4, 2, 1, 1, 3, 50, 3, 1, 1, 2, 4, 4, 1, 4, 1, 4, 4, 2, 1, 1, 3, 50, 3, 1, 1, 2, 4, 4, 1, 4, 1 (list; graph; listen)

	OFFSET	`0,1`
	LINKS	`Index entries for continued fractions for constants`
	FORMULA	`a(n)=(1/960){-2777(n mod 16)-77[(n+1) mod 16]+43[(n+2) mod 16]+103[(n+3) mod 16]+163[(n+4) mod 16]+43[(n+5) mod 16]-137[(n+6) mod 16]+223[(n+7) mod 16]-137[(n+8) mod 16]+223[(n+9) mod 16]+43[(n+10) mod 16]-77[(n+11) mod 16]-17[(n+12) mod 16]+43[(n+13) mod 16]+163[(n+14) mod 16]+2863[(n+15) mod 16]}-25[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava (ppl(AT)spl.at), May 15 2009]`
	MAPLE	`with(numtheory): Digits := 300: convert(evalf(sqrt(639)), confrac);`
	CROSSREFS	`Sequence in context: A040623 A094582 A040624 this_sequence A040612 A040614 A040615` `Adjacent sequences: A040610 A040611 A040612 this_sequence A040614 A040615 A040616`
	KEYWORD	`nonn,cofr,easy`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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