login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A040786 Continued fraction for sqrt(815). 2
28, 1, 1, 4, 1, 2, 5, 2, 1, 4, 1, 1, 56, 1, 1, 4, 1, 2, 5, 2, 1, 4, 1, 1, 56, 1, 1, 4, 1, 2, 5, 2, 1, 4, 1, 1, 56, 1, 1, 4, 1, 2, 5, 2, 1, 4, 1, 1, 56, 1, 1, 4, 1, 2, 5, 2, 1, 4, 1, 1, 56, 1, 1, 4, 1, 2, 5, 2, 1, 4, 1, 1, 56, 1, 1, 4, 1, 2, 5, 2, 1, 4, 1, 1, 56, 1, 1, 4, 1, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..89.

Index entries for continued fractions for constants

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

FORMULA

a(n)=(1/792)*{-3551*(n mod 12)+79*[(n+1) mod 12]+277*[(n+2) mod 12]-119*[(n+3) mod 12]+145*[(n+4) mod 12]+277*[(n+5) mod 12]-119*[(n+6) mod 12]+13*[(n+7) mod 12]+277*[(n+8) mod 12]-119*[(n+9) mod 12]+79*[(n+10) mod 12]+3709*[(n+11) mod 12]}-28*[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava, May 27 2009]

MAPLE

with(numtheory): Digits := 300: convert(evalf(sqrt(815)), confrac);

CROSSREFS

Sequence in context: A040792 A040788 A040787 * A040785 A040784 A174188

Adjacent sequences:  A040783 A040784 A040785 * A040787 A040788 A040789

KEYWORD

nonn,cofr,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 14 18:28 EDT 2019. Contains 328022 sequences. (Running on oeis4.)