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.

A195059 Decimal expansion of Pi^2/13.

Original entry on oeis.org

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

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Author

Omar E. Pol, Oct 04 2011

Keywords

Examples

			0.7592003385453352783718839230673962411780...
		

Crossrefs

Programs

Extensions

Extended by T. D. Noe, Oct 05 2011

A019698 Decimal expansion of 2*Pi/13.

Original entry on oeis.org

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

Views

Author

Keywords

Examples

			0.4833219467...
		

Crossrefs

Equals twice A019680.
Cf. A217548.

Programs

A387441 Decimal expansion of cos(Pi/13).

Original entry on oeis.org

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

Views

Author

R. J. Mathar, Aug 29 2025

Keywords

Examples

			0.97094181742605202716...
		

Crossrefs

Cf. A019680.

Formula

Largest of the 6 real-valued roots of 64*x^6 -32*x^5 -80*x^4 +32*x^3 +24*x^2 -6*x -1 = 0.
Equals sin(11/26*Pi).
Showing 1-3 of 3 results.