cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Showing 1-3 of 3 results.

A011002 Decimal expansion of 4th root of 3.

Original entry on oeis.org

1, 3, 1, 6, 0, 7, 4, 0, 1, 2, 9, 5, 2, 4, 9, 2, 4, 6, 0, 8, 1, 9, 2, 1, 8, 9, 0, 1, 7, 9, 6, 9, 9, 9, 0, 5, 5, 1, 6, 0, 0, 6, 8, 5, 9, 0, 2, 0, 5, 8, 2, 2, 1, 7, 6, 7, 3, 1, 9, 2, 2, 6, 5, 8, 5, 9, 5, 8, 6, 6, 7, 9, 5, 1, 9, 7, 3, 0, 2, 1, 3, 3, 0, 5, 0, 7, 4, 3, 1, 5, 0, 2, 4, 6, 6, 0, 1, 9, 3
Offset: 1

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Author

Keywords

Comments

Also 8th root of 9. - Alonso del Arte, Dec 06 2011
The 4th root r(4) of the expected value E(x^4) for a normal distribution with zero mean and standard deviation 1. See A289090 for more details. - Stanislav Sykora, Jul 26 2017

Examples

			1.3160740129524924608192189...
		

Crossrefs

Cf. A179615, continued fraction.

Programs

Formula

Equals exp(arctanh(1/2)/2). - Amiram Eldar, Jul 10 2023

A159824 Continued fraction for Pi^Pi (cf. A073233).

Original entry on oeis.org

36, 2, 6, 9, 2, 1, 2, 5, 1, 1, 6, 2, 1, 291, 1, 38, 50, 1, 2, 5, 4, 1, 2, 2, 1, 5, 1, 4, 13, 2, 1, 4, 3, 3, 1, 2, 25, 1, 1, 1, 2, 2, 1, 1, 1, 2, 2, 3, 1, 43, 1, 2, 7, 3, 1, 1, 1, 2, 4, 2, 1, 1, 3, 1, 3, 3, 2, 2, 16, 3, 5, 2, 1, 5, 2, 1, 10, 1, 1, 3, 1, 13, 1, 1, 3, 1, 10, 4, 1, 1, 1, 38, 1, 2, 2, 1, 1, 3
Offset: 0

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Author

Harry J. Smith, Apr 30 2009

Keywords

Examples

			36.4621596072079117709908260... = 36 + 1/(2 + 1/(6 + 1/(9 + 1/(2 + ...)))).
		

Crossrefs

Programs

  • Mathematica
    ContinuedFraction[Pi^Pi,200] (* Vladimir Joseph Stephan Orlovsky, Jul 20 2010 *)
  • PARI
    { allocatemem(932245000); default(realprecision, 21000); x=contfrac(Pi^Pi); for (n=1, 20001, write("b159824.txt", n-1, " ", x[n])); }

Extensions

Edited by N. J. A. Sloane, Jul 22 2010

A179616 Continued fraction for 5^(1/4).

Original entry on oeis.org

1, 2, 53, 4, 96, 2, 1, 6, 2, 2, 2, 6, 1, 4, 1, 49, 17, 2, 3, 2, 7, 2, 1, 1, 3, 1, 3, 2, 1, 2, 6, 11, 1, 8, 1, 1, 10, 1, 10, 2, 5, 1, 2, 1, 1, 4, 1, 3, 3, 2, 3, 5, 2, 1, 1, 1, 1, 1, 2, 4, 1, 3, 1, 1, 2, 5, 1, 4, 3, 1, 97, 2, 1, 176, 2, 1, 1, 11, 2, 2, 9, 5, 1, 5, 5, 3, 4, 1, 2, 1, 10, 1, 3, 1, 7, 2, 2, 1, 32
Offset: 0

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Author

Keywords

Comments

5^(1/4) = 1.4953487812212205419118989941409133953634...

Crossrefs

Cf. A011003 (decimal expansion), A179613, A179615.

Programs

  • Mathematica
    ContinuedFraction[5^(1/4),200]

Extensions

Offset changed by Andrew Howroyd, Jul 07 2024
Showing 1-3 of 3 results.