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A041625
Denominators of continued fraction convergents to sqrt(331).
2
1, 5, 26, 31, 212, 455, 1577, 2032, 3609, 9250, 12859, 34968, 47827, 561065, 1169957, 1731022, 2900979, 51047665, 53948644, 104996309, 263941262, 3008350191, 3272291453, 9552933097, 12825224550, 35203382197, 48028606747, 83231988944, 297724573579
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, 5571179602887940, 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) = 5571179602887940*a(n-34) - a(n-68). - Wesley Ivan Hurt, Jan 01 2024
MATHEMATICA
Denominator[Convergents[Sqrt[331], 30]] (* Vincenzo Librandi, Dec 22 2013 *)
CROSSREFS
Cf. A041624.
Sequence in context: A048269 A073069 A042281 * A207472 A083283 A049738
KEYWORD
nonn,frac,easy
AUTHOR
EXTENSIONS
More terms from Vincenzo Librandi, Dec 22 2013
STATUS
approved