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.

A019894 Decimal expansion of sine of 85 degrees.

Original entry on oeis.org

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

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Crossrefs

Programs

  • Mathematica
    RealDigits[Sin[17*Pi/36],10,99][[1]] (* Stefano Spezia, Feb 09 2025 *)

Formula

Equals cos(Pi/36) = 2F1(13/24,11/24;1/2;3/4) / 2 . - R. J. Mathar, Oct 27 2008

A019843 Decimal expansion of sine of 34 degrees.

Original entry on oeis.org

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

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Comments

This sequence is also decimal expansion of cosine of 56 degrees. - Mohammad K. Azarian, Jun 29 2013
An algebraic number of degree 12 and denominator 2. - Charles R Greathouse IV, Nov 05 2017

Examples

			0.55919290...
		

Programs

Formula

Equals 2*A019826*A019882. - R. J. Mathar, Jan 17 2021

A019860 Decimal expansion of sine of 51 degrees.

Original entry on oeis.org

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

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Author

Keywords

Comments

An algebraic number of degree 16 and denominator 2. - Charles R Greathouse IV, Nov 05 2017

Programs

Formula

Showing 1-3 of 3 results.