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.

A161012 Decimal expansion of tan(1/3).

Original entry on oeis.org

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

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Author

Harry J. Smith, Jun 13 2009

Keywords

Comments

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

Examples

			0.346253549510575491038543565609740774595703916189800217976444064898597...
		

Crossrefs

Cf. A019426 (continued fraction).

Programs

  • Mathematica
    RealDigits[Tan[1/3], 10, 120][[1]] (* Amiram Eldar, Jun 27 2023 *)
  • PARI
    default(realprecision, 20080); x=10*tan(1/3); for (n=0, 20000, d=floor(x); x=(x-d)*10; write("b161012.txt", n, " ", d));