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.

A106197 Analog of A094091 for S=4.

Original entry on oeis.org

0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0
Offset: 1

Views

Author

Joshua Zucker, Jul 23 2006

Keywords

Comments

A finite sequence of length 28.
The old entry with this A-number was a duplicate of A105306.

Crossrefs

Cf. A094091, A106197.

A096094 Analog of A094091 for S=3.

Original entry on oeis.org

0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 1
Offset: 1

Views

Author

Joshua Zucker, Jul 23 2006

Keywords

Comments

A finite sequence of length 23.
The old entry with this A-number was a duplicate of A052273.

Crossrefs

Cf. A094091, A106197.

A093382 a(n) = length k of longest binary sequence x(1) ... x(k) such that for no n <= i < j <= k/2 is x(i) ... x(2i) a subsequence of x(j) ... x(2j).

Original entry on oeis.org

11, 31, 199
Offset: 1

Views

Author

N. J. A. Sloane, Apr 29 2004

Keywords

Comments

Doesn't the binary sequence 000010011001110011101010101010101010101100110 demonstrate that a(2) >= 45? - R. J. Mathar, Jul 29 2007 Answer: No - see the following comment.
The sequence of length 45 above does not satisfy the requirements of the definition: Subsequences are not required to be consecutive. Therefore it cannot show a(2) >= 45. In the sequence we find for i=2, j=3: x(i..2i) is 000; x(j..2j) is 001001; and 000 is a subsequence of 001001. - Don Reble, May 13 2008
a(4) >= 376843. - Bert Dobbelaere, May 25 2024

Examples

			a(1) = 11 from 01110000000.

References

  • a(1) - a(3) computed by R. Dougherty, who finds that a(4) >= 187205.

Links

Crossrefs

See A093383-A093386 for illustrations of a(2) and a(3). Cf. A014221, A094091.
Showing 1-3 of 3 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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