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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
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