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 A042001 Denominators of continued fraction convergents to sqrt(523). 2
 1, 1, 7, 8, 15, 23, 107, 237, 818, 11689, 12507, 274336, 286843, 4290138, 13157257, 30604652, 135575865, 166180517, 301756382, 467936899, 3109377776, 3577314675, 160511223476, 164088538151, 1145042452382, 1309130990533, 2454173442915, 3763304433448 (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, 0, 0, 163620601252, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1). FORMULA a(n) = 163620601252*a(n-22) - a(n-44) for n>43. [Bruno Berselli, Jan 12 2014] MATHEMATICA Denominator[Convergents[Sqrt[523], 40]] (* Vincenzo Librandi, Jan 12 2014 *) CROSSREFS Cf. A042000. Sequence in context: A041100 A129658 A041693 * A020690 A191413 A066971 Adjacent sequences:  A041998 A041999 A042000 * A042002 A042003 A042004 KEYWORD nonn,frac,easy AUTHOR EXTENSIONS More terms from Vincenzo Librandi, Jan 12 2014 STATUS approved

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Last modified February 16 18:53 EST 2019. Contains 320165 sequences. (Running on oeis4.)