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A042290 Numerators of continued fraction convergents to sqrt(671). 2
25, 26, 259, 544, 803, 1347, 2150, 5647, 52973, 58620, 2983973, 3042593, 30367310, 63777213, 94144523, 157921736, 252066259, 662054254, 6210554545, 6872608799, 349840994495, 356713603294, 3560263424141, 7477240451576, 11037503875717, 18514744327293 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
LINKS
Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 117240, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).
FORMULA
G.f.: -(x^19 -25*x^18 +26*x^17 -259*x^16 +544*x^15 -803*x^14 +1347*x^13 -2150*x^12 +5647*x^11 -52973*x^10 -58620*x^9 -52973*x^8 -5647*x^7 -2150*x^6 -1347*x^5 -803*x^4 -544*x^3 -259*x^2 -26*x -25) / (x^20 -117240*x^10 +1). - Colin Barker, Dec 07 2013
MATHEMATICA
Numerator[Convergents[Sqrt[671], 30]] (* Vincenzo Librandi, Nov 21 2013 *)
CROSSREFS
Sequence in context: A042284 A042286 A042288 * A042292 A042294 A041311
KEYWORD
nonn,cofr,frac,easy
AUTHOR
EXTENSIONS
More terms from Colin Barker, Dec 07 2013
STATUS
approved

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Last modified July 19 12:04 EDT 2024. Contains 374394 sequences. (Running on oeis4.)