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 A042195 Denominators of continued fraction convergents to sqrt(622). 2
 1, 1, 16, 17, 33, 50, 233, 283, 2214, 4711, 115278, 235267, 1762147, 1997414, 9751803, 11749217, 21501020, 33250237, 520254575, 553504812, 27088485551, 27641990363, 441718340996, 469360331359, 911078672355, 1380439003714, 6432834687211, 7813273690925 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..200 Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 27608740126, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1). FORMULA a(n) = 27608740126*a(n-20) - a(n-40) for n > 39. - Vincenzo Librandi, Jan 16 2014 MATHEMATICA Denominator[Convergents[Sqrt[622], 30]] (* Vincenzo Librandi, Jan 16 2014 *) CROSSREFS Cf. A042194. Sequence in context: A319281 A022106 A041518 * A041520 A058542 A041516 Adjacent sequences:  A042192 A042193 A042194 * A042196 A042197 A042198 KEYWORD nonn,frac,easy AUTHOR EXTENSIONS More terms from Vincenzo Librandi, Jan 16 2014 STATUS approved

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Last modified December 13 17:13 EST 2019. Contains 329970 sequences. (Running on oeis4.)