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A042455
Denominators of continued fraction convergents to sqrt(755).
2
1, 2, 21, 44, 2397, 4838, 50777, 106392, 5795945, 11698282, 122778765, 257255812, 14014592613, 28286441038, 296879002993, 622044447024, 33887279142289, 68396602731602, 717853306458309, 1504103215648220, 81939426951462189, 165382957118572598
OFFSET
0,2
LINKS
FORMULA
G.f.: -(x^2-2*x-1)*(x^4+22*x^2+1) / (x^8-2418*x^4+1). - Colin Barker, Dec 14 2013
MATHEMATICA
Denominator[Convergents[Sqrt[755], 30]] (* Vincenzo Librandi, Jan 22 2014 *)
LinearRecurrence[{0, 0, 0, 2418, 0, 0, 0, -1}, {1, 2, 21, 44, 2397, 4838, 50777, 106392}, 30] (* Harvey P. Dale, Sep 07 2018 *)
CROSSREFS
Sequence in context: A224346 A005484 A330201 * A245546 A074875 A231807
KEYWORD
nonn,frac,easy
AUTHOR
EXTENSIONS
More terms from Colin Barker, Dec 14 2013
STATUS
approved