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 A042235 Denominators of continued fraction convergents to sqrt(643). 2
 1, 2, 3, 11, 14, 235, 1894, 4023, 5917, 9940, 55617, 1400365, 7057442, 8457807, 15515249, 39488305, 331421689, 5342235329, 5673657018, 22363206383, 28036863401, 78436933185, 3949883522651, 7978203978487, 11928087501138, 43762466481901 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 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, 0, 0, 3977920386052, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1). MATHEMATICA Denominator[Convergents[Sqrt[643], 30]] (* Harvey P. Dale, Aug 05 2011 *) CROSSREFS Cf. A042234. Sequence in context: A041235 A036972 A041637 * A050587 A293026 A178430 Adjacent sequences:  A042232 A042233 A042234 * A042236 A042237 A042238 KEYWORD nonn,frac,easy AUTHOR EXTENSIONS More terms from Vincenzo Librandi, Jan 17 2014 STATUS approved

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Last modified October 19 04:40 EDT 2019. Contains 328211 sequences. (Running on oeis4.)