A040204 - OEIS

A040204

Continued fraction for sqrt(219).

14, 1, 3, 1, 28, 1, 3, 1, 28, 1, 3, 1, 28, 1, 3, 1, 28, 1, 3, 1, 28, 1, 3, 1, 28, 1, 3, 1, 28, 1, 3, 1, 28, 1, 3, 1, 28, 1, 3, 1, 28, 1, 3, 1, 28, 1, 3, 1, 28, 1, 3, 1, 28, 1, 3, 1, 28, 1, 3, 1, 28, 1, 3, 1, 28, 1, 3, 1, 28, 1, 3, 1, 28, 1, 3, 1, 28, 1, 3, 1, 28, 1, 3, 1

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OFFSET

0,1

LINKS

Table of n, a(n) for n=0..83.

Index entries for continued fractions for constants.

Index entries for linear recurrences with constant coefficients, signature (0,0,0,1).

FORMULA

From Amiram Eldar, Nov 29 2023: (Start)

Multiplicative with a(2) = 3, a(2^e) = 28 for e >= 2, and a(p^e) = 1 for an odd prime p.

Dirichlet g.f.: zeta(s) * (1 + 1/2^(s-1) + 25/4^s). (End)

MAPLE