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A042615 Denominators of continued fraction convergents to sqrt(836). 2
1, 1, 11, 12, 23, 58, 81, 139, 1471, 1610, 91631, 93241, 1024041, 1117282, 2141323, 5399928, 7541251, 12941179, 136953041, 149894220, 8531029361, 8680923581, 95340265171, 104021188752, 199361453923, 502744096598, 702105550521, 1204849647119, 12750602021711 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
LINKS
Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 93102, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).
FORMULA
G.f.: -(x^18 -x^17 +11*x^16 -12*x^15 +23*x^14 -58*x^13 +81*x^12 -139*x^11 +1471*x^10 -1610*x^9 -1471*x^8 -139*x^7 -81*x^6 -58*x^5 -23*x^4 -12*x^3 -11*x^2 -x -1) / (x^20 -93102*x^10 +1). - Colin Barker, Dec 20 2013
MATHEMATICA
Denominator[Convergents[Sqrt[836], 30]] (* Vincenzo Librandi, Jan 25 2014 *)
CROSSREFS
Sequence in context: A092778 A041248 A112063 * A041244 A041242 A042019
KEYWORD
nonn,frac,easy
AUTHOR
EXTENSIONS
More terms from Colin Barker, Dec 20 2013
STATUS
approved

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Last modified March 29 11:45 EDT 2024. Contains 371278 sequences. (Running on oeis4.)