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A042517 Denominators of continued fraction convergents to sqrt(787). 2
1, 18, 19, 56, 299, 355, 3139, 3494, 6633, 182585, 189218, 371803, 3163642, 3535445, 20840867, 45217179, 66058046, 1234262007, 69184730438, 1246559409891, 1315744140329, 3878047690549, 20705982593074, 24584030283623, 217378224862058 (list; graph; refs; listen; history; text; internal format)
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, 69250788484, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).
FORMULA
a(n) = 69250788484*a(n-18) - a(n-36) for n>35. - Vincenzo Librandi, Jan 23 2014
MATHEMATICA
Denominator[Convergents[Sqrt[787], 30]] (* Harvey P. Dale, Aug 22 2013 *)
CROSSREFS
Sequence in context: A041664 A041662 A300092 * A041660 A257314 A041668
KEYWORD
nonn,frac,easy
AUTHOR
EXTENSIONS
More terms from Vincenzo Librandi, Jan 23 2014
STATUS
approved

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Last modified April 23 11:21 EDT 2024. Contains 371913 sequences. (Running on oeis4.)