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 A040425 Continued fraction for sqrt(447). 1
 21, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42, 7, 42 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Index entries for linear recurrences with constant coefficients, signature (0, 1). FORMULA a(n)=(1/2)*[49+35*(-1)^n]-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(447)), confrac); MATHEMATICA ContinuedFraction[Sqrt[447], 50] (* or *) PadRight[{21}, 100, {42, 7}] (* Harvey P. Dale, Mar 09 2015 *) CROSSREFS Sequence in context: A040427 A070988 A040426 * A040424 A220132 A146375 Adjacent sequences:  A040422 A040423 A040424 * A040426 A040427 A040428 KEYWORD nonn,cofr,easy,less AUTHOR STATUS approved

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Last modified July 21 17:54 EDT 2019. Contains 325198 sequences. (Running on oeis4.)