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A041321
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Denominators of continued fraction convergents to sqrt(174).
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2
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1, 5, 21, 110, 2881, 14515, 60941, 319220, 8360661, 42122525, 176850761, 926376330, 24262635341, 122239553035, 513220847481, 2688343790440, 70410159398921, 354739140785045, 1489366722539101, 7801572753480550, 204330258313033401, 1029452864318647555
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OFFSET
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0,2
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LINKS
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FORMULA
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G.f.: -(x^2-5*x-1)*(x^4+22*x^2+1) / (x^8-2902*x^4+1). - Colin Barker, Nov 15 2013
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MATHEMATICA
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LinearRecurrence[{0, 0, 0, 2902, 0, 0, 0, -1}, {1, 5, 21, 110, 2881, 14515, 60941, 319220}, 30] (* Harvey P. Dale, Jun 21 2022 *)
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PROG
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(Magma) I:=[1, 5, 21, 110, 2881, 14515, 60941, 319220]; [n le 8 select I[n] else 2902*Self(n-4)-Self(n-8): n in [1..40]]; // Vincenzo Librandi, Dec 15 2013
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CROSSREFS
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KEYWORD
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nonn,frac,easy
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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