A010223 - OEIS

A010223

Continued fraction for sqrt(179).

13, 2, 1, 1, 1, 3, 5, 13, 5, 3, 1, 1, 1, 2, 26, 2, 1, 1, 1, 3, 5, 13, 5, 3, 1, 1, 1, 2, 26, 2, 1, 1, 1, 3, 5, 13, 5, 3, 1, 1, 1, 2, 26, 2, 1, 1, 1, 3, 5, 13, 5, 3, 1, 1, 1, 2, 26, 2, 1, 1, 1, 3, 5, 13, 5, 3, 1, 1, 1, 2, 26, 2, 1, 1, 1, 3

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OFFSET

0,1

LINKS

Table of n, a(n) for n=0..75.

G. Xiao, Contfrac

Index entries for continued fractions for constants

Index entries for periodic sequences.

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

MATHEMATICA

ContinuedFraction[Sqrt[179], 300] (* Vladimir Joseph Stephan Orlovsky, Mar 26 2011 *)

PadRight[{13}, 120, {26, 2, 1, 1, 1, 3, 5, 13, 5, 3, 1, 1, 1, 2}] (* Harvey P. Dale, Mar 25 2019 *)

PROG

(PARI) a(n)=if(n, 8260994319939031931\27^(n%14)%27, 13) \\ Charles R Greathouse IV, May 31 2026

CROSSREFS

Cf. A041330/A041331 (convergents), A177936 (decimal expansion).

Sequence in context: A133371 A223515 A281092 * A010222 A086266 A399048

Adjacent sequences: A010220 A010221 A010222 * A010224 A010225 A010226

KEYWORD

nonn,cofr,easy

AUTHOR

N. J. A. Sloane

STATUS

approved