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.

A238272 Duplicate of A181673.

Original entry on oeis.org

8, 8, 9, 9, 0, 9, 0, 0, 0, 8, 9, 9, 1, 0, 9, 8, 9, 9, 0, 1, 0, 9, 0, 0, 0, 9, 9, 8, 8, 9, 0, 1, 1, 0, 9, 9, 1, 0, 9, 8, 8, 9, 0, 0, 0, 9, 0, 0, 0, 0, 9, 9, 0, 1, 0, 1, 0, 8, 9, 9, 1, 0, 0, 0, 8, 9, 0, 0, 8, 8, 9, 9, 1, 0, 0, 0, 8, 9, 0, 0, 0, 9, 0, 1, 1, 0, 9, 9, 0, 1, 0, 1, 1, 0, 9, 8, 9, 9, 9, 8, 8, 8, 9, 9, 0
Offset: 0

Views

Author

Robert G. Wilson v, Feb 21 2014

Keywords

Comments

Suggested by a posting to SeqFan list by Alonso Del Arte at 15:35 on Aug 09 2012.

Examples

			=0.08899090008991098990109000998890110991098890009000099010108991000890...

Programs

  • Mathematica
    RealDigits[ Sum[ N[ MoebiusMu[n] 10^-n, 128], {n, 120}], 10, 111][[1]]

A238270 Decimal expansion of Sum_{n>=1} mu(n)/2^n.

Original entry on oeis.org

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

Views

Author

Robert G. Wilson v, Feb 21 2014

Keywords

Comments

Suggested by a posting to SeqFan list by Alonso del Arte at 15:35 on Aug 09 2012.

Examples

			0.102011334817810364743036393931824351543610492510291073587388032...

Crossrefs

Cf. A008683, A238271, A181673, A238273.

Programs

  • Mathematica
    RealDigits[ Sum[ N[ MoebiusMu[n] 2^-n, 128], {n, 380}], 10, 111][[1]]
  • PARI
    sum(n=1,(default(realprecision)+2)*log(10)/log(2),moebius(n)/2.^n) \\ Charles R Greathouse IV, Sep 03 2015

A238271 Decimal expansion of sum(n>=1, mu(n)/3^n ).

Original entry on oeis.org

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

Views

Author

Robert G. Wilson v, Feb 21 2014

Keywords

Comments

Suggested by a posting to SeqFan list by Alonso Del Arte at 15:35 on Aug 09 2012.

Examples

			=0.1819953867026338878278001003005655732263449801353830617592494771...

Crossrefs

Cf. A008683, A238270, A181673 & A238273.

Programs

  • Mathematica
    RealDigits[ Sum[ N[ MoebiusMu[n] 3^-n, 128], {n, 300}], 10, 111][[1]]

A238273 Decimal expansion of the Sum_{n>=1} mu(n)/n^n where mu is the Moebius function.

Original entry on oeis.org

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

Views

Author

Robert G. Wilson v, Feb 21 2014

Keywords

Comments

Suggested by a posting to SeqFan list by Alonso Del Arte at 15:35 on Aug 09 2012.

Examples

			0.71266318226428345712160416832186125060530702174716136907035050632955566121...

Crossrefs

Cf. A008683, A238270, A238271 & A181673.

Programs

  • Mathematica
    RealDigits[ Sum[ N[ MoebiusMu[n] 1 n^-n, 128], {n, 100}], 10, 111][[1]]
Showing 1-4 of 4 results.

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