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A041796
Numerators of continued fraction convergents to sqrt(419).
2
20, 41, 307, 348, 1003, 3357, 4360, 12077, 16437, 324380, 340817, 1006014, 1346831, 5046507, 11439845, 16486352, 126844309, 270174970, 10933843109, 22137861188, 165898871425, 188036732613, 541972336651
OFFSET
0,1
LINKS
Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 540349940, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).
FORMULA
a(n) = 540349940*a(n-18) - a(n-36) for n>35. [Bruno Berselli, Nov 09 2013]
MATHEMATICA
Numerator[Convergents[Sqrt[419], 30]] (* Vincenzo Librandi, Nov 09 2013 *)
CROSSREFS
Cf. A041797.
Sequence in context: A038639 A041792 A041794 * A041798 A132762 A075228
KEYWORD
nonn,cofr,frac,easy,less
AUTHOR
STATUS
approved