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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A235362 Decimal expansion of the cube root of 2 divided by 2. 2
6, 2, 9, 9, 6, 0, 5, 2, 4, 9, 4, 7, 4, 3, 6, 5, 8, 2, 3, 8, 3, 6, 0, 5, 3, 0, 3, 6, 3, 9, 1, 1, 4, 1, 7, 5, 2, 8, 5, 1, 2, 5, 7, 3, 2, 3, 5, 0, 7, 5, 3, 9, 9, 0, 0, 4, 0, 9, 8, 7, 5, 5, 6, 0, 7, 7, 6, 4, 9, 8, 3, 8, 2, 5, 6, 9, 7, 9, 7, 4, 1, 8, 6, 4, 6, 9, 8, 2, 8, 1, 2, 1, 8, 1, 2, 7 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Also reciprocal of the real cubic root of 4 and negated real part of either complex cubic root of 2.

LINKS

Table of n, a(n) for n=0..95.

Richard Zippel, The Weyl Computer Algebra Substrate in Design and Implementation of Symbolic Computation Systems: International Symposium, DISCO '93 Gmunden, Austria, September 15-17, 1993. Proceedings, p. 306.

FORMULA

2^(1/3)/2 = 1/2^(2/3) = 1/4^(1/3).

(-2^(1/3)/2 + sqrt(-3)/4^(1/3))^3 = 2.

EXAMPLE

= 0.6299605249474365823836053...

MAPLE

MmaTranslator[Mma][RealDigits](evalf[100](10^100*(2^(1/3)/2)))[1]; # Peter Luschny, Apr 10 2014

MATHEMATICA

RealDigits[1/2^(2/3), 10, 128][[1]]

PROG

(PARI) sqrtn(1/4, 3) \\ Charles R Greathouse IV, Apr 14 2014

CROSSREFS

Cf. A002580, A010503, A020761, A239797.

Sequence in context: A195411 A050235 A223536 * A018801 A055021 A260329

Adjacent sequences:  A235359 A235360 A235361 * A235363 A235364 A235365

KEYWORD

nonn,cons,easy

AUTHOR

Alonso del Arte, Jan 07 2014

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 August 20 05:25 EDT 2019. Contains 326139 sequences. (Running on oeis4.)