OFFSET
0,1
LINKS
FORMULA
From Amiram Eldar, Dec 26 2023: (Start)
Multiplicative with a(2^e) = 4, a(3^e) = 11, and a(p^e) = 1 for an odd prime p >= 5.
Dirichlet g.f.: zeta(s) * (1 + 3/2^s) * (1 + 10/3^s). (End)
Sum_{k=1..n} a(k) ~ 65*n/6. - Vaclav Kotesovec, Nov 08 2024
MAPLE
with(numtheory): Digits := 300: convert(evalf(sqrt(520)), confrac);
MATHEMATICA
ContinuedFraction[Sqrt[520], 100] (* Amiram Eldar, Dec 26 2023 *)
PadRight[{22}, 120, {44, 1, 4, 11, 4, 1}] (* Harvey P. Dale, Nov 08 2024 *)
CROSSREFS
KEYWORD
nonn,cofr,easy,less,mult
AUTHOR
STATUS
approved