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 1-10 of 13 results. Next

A073449 Decimal expansion of cot(1).

Original entry on oeis.org

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

Views

Author

Rick L. Shepherd, Aug 01 2002

Keywords

Comments

By the Lindemann-Weierstrass theorem, this constant is transcendental. - Charles R Greathouse IV, May 13 2019

Examples

			0.64209261593433070300641998659...

Links

Crossrefs

Cf. A049471 (tan(1)=1/A073449), A049469 (sin(1)), A049470 (cos(1)), A073447 (csc(1)), A073448 (sec(1)).

Programs

  • Mathematica
    RealDigits[Cot[1], 10, 100][[1]] (* Amiram Eldar, May 15 2021 *)
  • PARI
    cotan(1)

Formula

Equals Sum_{k>=0} (-1)^k * B(2*k) * 2^(2*k) / (2*k)!, where B(k) is the k-th Bernoulli number. - Amiram Eldar, May 15 2021

A073448 Decimal expansion of sec(1).

Original entry on oeis.org

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

Views

Author

Rick L. Shepherd, Aug 01 2002

Keywords

Comments

By the Lindemann-Weierstrass theorem, this constant is transcendental. - Charles R Greathouse IV, May 13 2019

Examples

			1.85081571768092561791175324139...

Links

Crossrefs

Cf. A049470 (cos(1)=1/A073448), A049469 (sin(1)), A049471 (tan(1)), A073447 (csc(1)), A073449 (cot(1)), A122045.

Programs

  • Mathematica
    RealDigits[Sec[1],10,120][[1]] (* Harvey P. Dale, Mar 13 2013 *)
  • PARI
    1/cos(1)

Formula

Equals Sum_{k>=0} (-1)^k * E(2*k) / (2*k)!, where E(k) is the k-th Euler number (A122045). - Amiram Eldar, May 15 2021

A117028 Decimal expansion of abs(log_10(sine of 1 radian)).

Original entry on oeis.org

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

Views

Author

Mohammad K. Azarian, Apr 15 2006

Keywords

Examples

			0.07496085456049550613838945425940469659487454046535873354155675712422

Crossrefs

Cf. A049469; A073447.

Formula

Equals A117029/A002392. - R. J. Mathar, Apr 23 2009

Extensions

Clarified base of logarithm in definition - R. J. Mathar, Apr 23 2009

A117029 Decimal expansion of abs(log(sine of 1 radian)).

Original entry on oeis.org

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

Views

Author

Mohammad K. Azarian, Apr 15 2006

Keywords

Examples

			0.1726037462690916785134109758639090698401084088964048049085363156679....

Links

Crossrefs

Cf. A049469, A073447.

Programs

A117021 Decimal expansion of (sine of 1 radian)^(-2)=(csc 1 radian)^2.

Original entry on oeis.org

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

Views

Author

Mohammad K. Azarian, Apr 15 2006

Keywords

Examples

			1.41228292743739191460933500454162490237229511435081720805327260649927902975112635455487191470468477996523963837778216770

Crossrefs

Cf. A049469; A073447.

Programs

  • Mathematica
    RealDigits[Sin[1]^-2,10,120][[1]] (* Harvey P. Dale, Aug 23 2013 *)

A117022 Decimal expansion of (sine of 1 radian)^(-3)=(csc 1 radian)^3.

Original entry on oeis.org

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

Views

Author

Mohammad K. Azarian, Apr 15 2006

Keywords

Examples

			1.67835011894059405449138730758235319831856234904192490952426587549399475571366568584431227924425380177082223002088137021

Crossrefs

Cf. A049469; A073447.

Programs

  • Mathematica
    RealDigits[Csc[1]^3,10,120][[1]] (* Harvey P. Dale, Sep 05 2017 *)

A117023 Decimal expansion of (sine of 1 radian)^(-4)=(csc 1 radian)^4.

Original entry on oeis.org

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

Views

Author

Mohammad K. Azarian, Apr 15 2006

Keywords

Examples

			1.9945430671311295960125230904408284250954775408034483045407948703

Crossrefs

Cf. A049469; A073447.

Programs

  • Mathematica
    RealDigits[Csc[1]^4,10,120][[1]] (* Harvey P. Dale, Dec 28 2024 *)

A117024 Decimal expansion of (sine of 1 radian)^(-5)=(csc 1 radian)^5.

Original entry on oeis.org

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

Views

Author

Mohammad K. Azarian, Apr 15 2006

Keywords

Examples

			2.370305219242317082304125526181166832721517741842121776860324339993294

Crossrefs

Cf. A049469; A073447.

Programs

  • Mathematica
    RealDigits[1/Sin[1]^5,10,120][[1]] (* Harvey P. Dale, Sep 20 2020 *)

A117025 Decimal expansion of e^(sine of 1 radian).

Original entry on oeis.org

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

Views

Author

Mohammad K. Azarian, Apr 15 2006

Keywords

Examples

			2.3197768247158531739565903775032668132549047723762628334540549848

Crossrefs

Cf. A049469; A073447.

Programs

  • Mathematica
    RealDigits[E^Sin[1],10,120][[1]] (* Harvey P. Dale, May 25 2023 *)

A117026 Decimal expansion of e^(-(sine of 1 radian)).

Original entry on oeis.org

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

Views

Author

Mohammad K. Azarian, Apr 15 2006

Keywords

Examples

			0.431075950645592324666658636107780802986835728185674603362264770443

Crossrefs

Cf. A049469; A073447.

Programs

  • Mathematica
    RealDigits[E^-Sin[1],10,120][[1]] (* Harvey P. Dale, Sep 23 2022 *)
Showing 1-10 of 13 results. Next

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