OFFSET
0,1
LINKS
FORMULA
From Amiram Eldar, Dec 26 2023: (Start)
Multiplicative with a(2) = 19, a(2^e) = 40 for e >= 2, and a(p^e) = 1 for an odd prime p.
Dirichlet g.f.: zeta(s) * (1 + 9/2^(s-1) + 21/2^(2*s)). (End)
MAPLE
with(numtheory): Digits := 300: convert(evalf(sqrt(439)), confrac);
MATHEMATICA
ContinuedFraction[Sqrt[439], 120] (* or *) PadRight[{20}, 120, {40, 1, 19, 1}] (* Harvey P. Dale, Jun 24 2018 *)
CROSSREFS
KEYWORD
nonn,cofr,easy,mult
AUTHOR
STATUS
approved