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A042113
Denominators of continued fraction convergents to sqrt(581).
2
1, 9, 10, 19, 29, 48, 77, 279, 3146, 3425, 13421, 30267, 195023, 420313, 1455962, 1876275, 22094987, 68161236, 90256223, 158417459, 248673682, 407091141, 655764823, 6308974548, 303486543127, 2737687862691, 3041174405818, 5778862268509, 8820036674327, 14598898942836
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, 304142307950, 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) = 304142307950*a(n-24) - a(n-48) for n>47. - Vincenzo Librandi, Jan 15 2014
MATHEMATICA
Denominator[Convergents[Sqrt[581], 30]] (* Vincenzo Librandi, Jan 15 2014 *)
CROSSREFS
Cf. A042112.
Sequence in context: A299969 A050551 A022099 * A041166 A042613 A020694
KEYWORD
nonn,frac,easy
AUTHOR
EXTENSIONS
More terms from Vincenzo Librandi, Jan 15 2014
STATUS
approved