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.

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A180443 Decimal expansion of constant defined in A030315.

Original entry on oeis.org

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

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Author

Jonathan Vos Post, Sep 05 2010

Keywords

Comments

This constant is 2-normal. - Charles R Greathouse IV, Feb 06 2015

Examples

			0.56887993706597271422110485837530271071711762861585045274...
		

Crossrefs

Programs

  • Mathematica
    First[RealDigits[1 - ChampernowneNumber[2]/2, 10, 100]] (* Paolo Xausa, Jun 12 2024 *)

Formula

Equals 1 - A066716 / 2. - Amiram Eldar, May 22 2023

Extensions

a(30) onward corrected by Sean A. Irvine, Jun 09 2024

A030316 Least k such that the base-2 representation of n begins at s(k), where s=A030315.

Original entry on oeis.org

3, 3, 7, 3, 8, 7, 19, 3, 24, 8, 21, 23, 7, 19, 51, 14, 3, 24, 58, 8, 27, 21, 54, 66, 23, 7, 20, 56, 19, 51, 131, 45, 14, 10, 3, 37, 24, 58, 140, 8, 76, 27, 62, 21, 71, 54, 135, 173, 66, 23, 57, 7, 61, 20, 53, 149, 56, 143, 19, 137, 51, 131, 323
Offset: 1

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Author

Keywords

Crossrefs

Cf. A030315.
Showing 1-2 of 2 results.