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A042565
Denominators of continued fraction convergents to sqrt(811).
2
1, 2, 21, 23, 205, 228, 433, 1094, 1527, 2621, 4148, 15065, 94538, 1716749, 1811287, 8961897, 10773184, 30508265, 41281449, 1145107388, 1186388837, 3517885062, 4704273899, 22334980658, 27039254557, 509041562684, 3081288630661, 9752907454667, 12834196085328
OFFSET
0,2
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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2764144327157232820, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).
FORMULA
a(n) = 2764144327157232820*a(n-38) - a(n-76) for n>75. - Vincenzo Librandi, Jan 25 2014
MATHEMATICA
Denominator[Convergents[Sqrt[811], 30]] (* Vincenzo Librandi, Jan 25 2014 *)
CROSSREFS
Sequence in context: A294116 A041513 A135053 * A079907 A342727 A075715
KEYWORD
nonn,frac,easy
AUTHOR
EXTENSIONS
More terms from Vincenzo Librandi, Jan 25 2014
STATUS
approved