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A042745
Denominators of continued fraction convergents to sqrt(903).
2
1, 20, 1201, 24040, 1443601, 28896060, 1735207201, 34733040080, 2085717612001, 41749085280100, 2507030834418001, 50182365773640120, 3013448977252825201, 60319161910830144140, 3622163163627061473601, 72503582434452059616160
OFFSET
0,2
FORMULA
G.f.: -(x^2-20*x-1) / (x^4-1202*x^2+1). - Colin Barker, Dec 22 2013
MATHEMATICA
Denominator[Convergents[Sqrt[903], 30]] (* Vincenzo Librandi, Jan 28 2014 *)
LinearRecurrence[{0, 1202, 0, -1}, {1, 20, 1201, 24040}, 20] (* Harvey P. Dale, Oct 14 2019 *)
CROSSREFS
Sequence in context: A151625 A203775 A184269 * A363054 A158912 A036067
KEYWORD
nonn,frac,easy,less
AUTHOR
EXTENSIONS
Additional term from Colin Barker, Dec 22 2013
STATUS
approved