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 A010197 Continued fraction for sqrt(138). 1
 11, 1, 2, 1, 22, 1, 2, 1, 22, 1, 2, 1, 22, 1, 2, 1, 22, 1, 2, 1, 22, 1, 2, 1, 22, 1, 2, 1, 22, 1, 2, 1, 22, 1, 2, 1, 22, 1, 2, 1, 22, 1, 2, 1, 22, 1, 2, 1, 22, 1, 2, 1, 22, 1, 2, 1, 22, 1, 2, 1, 22, 1, 2, 1, 22, 1, 2, 1, 22, 1, 2, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS G. Xiao, Contfrac Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 1). FORMULA a(n) = (1/6)*(-25*(n mod 4) + 8*((n+1) mod 4) + 5*((n+2) mod 4) + 38*((n+3) mod 4)) - 11*(C(2*n,n) mod 2), with n >= 0. - Paolo P. Lava, Jul 24 2009 MATHEMATICA ContinuedFraction[Sqrt[138], 300] (* Vladimir Joseph Stephan Orlovsky, Mar 13 2011 *) CROSSREFS Sequence in context: A015125 A290552 A159861 * A010196 A039617 A229186 Adjacent sequences:  A010194 A010195 A010196 * A010198 A010199 A010200 KEYWORD nonn,cofr AUTHOR STATUS approved

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Last modified April 8 21:44 EDT 2020. Contains 333329 sequences. (Running on oeis4.)