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 A040215 Continued fraction for sqrt(231). 0
 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; text; internal format)
 OFFSET 0,1 LINKS Index entries for linear recurrences with constant coefficients, signature (0, 1). FORMULA a(n)=(1/2)*[35+25*(-1)^n]-15*[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava, Apr 23 2009] MAPLE with(numtheory): Digits := 300: convert(evalf(sqrt(231)), confrac); CROSSREFS Sequence in context: A051998 A131611 A166209 * A335879 A147422 A147084 Adjacent sequences:  A040212 A040213 A040214 * A040216 A040217 A040218 KEYWORD nonn,cofr,easy AUTHOR STATUS approved

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Last modified May 27 16:48 EDT 2022. Contains 354110 sequences. (Running on oeis4.)