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 1-4 of 4 results.

A011276 Decimal expansion of 7th root of 10.

Original entry on oeis.org

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

Views

Author

N. J. A. Sloane

Keywords

Links

Crossrefs

Cf. A010769.

Programs

A011186 Decimal expansion of 7th root of 4.

Original entry on oeis.org

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

Views

Author

N. J. A. Sloane

Keywords

Links

Crossrefs

Cf. A010769, A011201, A011216, A011231, A011246, A011261, A011276, A011291, A011306, A011321, A011336, A011351, A011366, A011381, A011396, A011411, A011426.

Programs

A246709 Decimal expansion of the seventh root of 3.

Original entry on oeis.org

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

Views

Author

Alonso del Arte, Sep 01 2014

Keywords

Examples

			3^(1/7) = 1.1699308127586868864629757255137346676994...

Links

Crossrefs

Cf. A246708 (sixth root of 3), A011267 (13th root of 9).
Cf. A010769.

Programs

  • Mathematica
    RealDigits[3^(1/7), 10, 108][[1]]
  • PARI
    sqrtn(3, 7) \\ Stefano Spezia, Apr 03 2025

A375851 Decimal expansion of the 7th root of 306.

Original entry on oeis.org

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

Views

Author

Stefano Spezia, Sep 15 2024

Keywords

Comments

Calculated to 2800 digits by R. William Gosper in a 1976 contest where this task was the problem number 9.

Examples

			2.26518178629569774774567213263272411892131...

References

  • David Wells, The Penguin Dictionary of Curious and Interesting Numbers. Penguin Books, NY, 1986, Revised edition 1987. See pp. 151-152.

Links

  • Fred Gruenberger, Contest 12: Countdown, Popular Computing, Vol. 4, No. 10 (1976), p. 10.
  • Fred Gruenberger, Contest 12 results, Popular Computing, Vol. 5, No. 3 (1977), p. 6.
  • Fred Gruenberger, Gosper, Popular Computing, Vol. 5, No. 5 (1977), p. 18.
  • Fred Gruenberger, Computer Recreations, Scientific American, Vol. 250, No. 4 (1984), pp. 19-27.

Crossrefs

Cf. A010769, A011186, A011201, A011216, A011231, A011246, A011261, A011276, A011291, A011306, A011321, A011336, A011351, A011366, A011381, A011396, A011411, A011426.

Programs

  • Mathematica
    RealDigits[306^(1/7),10,100][[1]]
  • PARI
    sqrtn(306, 7) \\ Amiram Eldar, Sep 18 2024

Formula

Equals A010769*A011261*A011381. - R. J. Mathar, Sep 23 2024
Showing 1-4 of 4 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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