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.

A334400 Decimal expansion of cosh(e).

Original entry on oeis.org

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

Views

Author

Ilya Gutkovskiy, Apr 26 2020

Keywords

Examples

			(e^e + e^(-e))/2 = 7.6101251386622883634186102301133791...

Crossrefs

Cf. A001113, A073226, A073230, A073743, A085660, A334399.

Programs

  • Mathematica
    RealDigits[Cosh[E], 10, 110] [[1]]

Formula

Equals Sum_{k>=0} e^(2*k)/(2*k)!.

A365927 Decimal expansion of arccosh(e).

Original entry on oeis.org

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

Views

Author

Kritsada Moomuang, Oct 15 2023

Keywords

Examples

			1.65745445415307727259382874228053...

Crossrefs

Cf. A001113, A073743, A085660, A188739, A334400, A366599.

Programs

  • Mathematica
    RealDigits[ArcCosh[E], 10, 100] [[1]]
  • PARI
    acosh(exp(1)) \\ Amiram Eldar, Oct 18 2023

Formula

Equals log(A188739). - Amiram Eldar, Oct 18 2023

A212436 Decimal expansion of the real part of e^(i/e).

Original entry on oeis.org

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

Views

Author

Stanislav Sykora, May 16 2012

Keywords

Comments

Also cos(1/e).
The imaginary part of e^(i/e), or sin(1/e), is A212437.

Examples

			0.933092075598208563540410171408743589...

Crossrefs

Cf. A212437, A085659, A085660.

Programs

  • Mathematica
    RealDigits[Re[E^(I/E)],10,120][[1]] (* Harvey P. Dale, Sep 05 2022 *)

A212437 Decimal expansion of the imaginary part of e^(i/e).

Original entry on oeis.org

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

Views

Author

Stanislav Sykora, May 16 2012

Keywords

Comments

Also sin(1/e).
The real part of e^(i/e), or cos(1/e) is in A212436.

Examples

			0.3596375654124955770382503939056247...

Crossrefs

Cf. A212436, A085659, A085660.

Programs

  • Mathematica
    RealDigits[Im[E^(I/E)],10,120][[1]] (* Harvey P. Dale, Jul 12 2021 *)
Showing 1-4 of 4 results.

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