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 1-2 of 2 results.

A355907 A355906(n)/3.

Original entry on oeis.org

0, 0, -1, 1, -2, 3, -5, 7, -11, 16, -25, 37, -56, 84, -127, 190, -286, 429, -644, 966
Offset: 0

Views

Author

N. J. A. Sloane, Sep 18 2022

Keywords

Comments

This is also -(A355905(n)+A355906(n))/2.

Links

Crossrefs

Cf. A355904-A355906, A355908-A355913.

A355905 Leftmost path in the tree T_0 of all negasemiternary (or NST) fractions whose 2-adic part is zero.

Original entry on oeis.org

0, 2, 1, 1, 0, 1, 1, 1, 1, 2, 1, 1, 0, 2, 1, 2, 0, 1, 0, 2, 0, 1, 1, 2, 0, 1, 0, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 1, 0, 1, 0, 1, 1, 2, 0, 1, 0, 1, 0, 2, 0, 1, 0, 1, 1, 2, 1, 2, 0, 1, 1, 2, 0, 1, 0, 2, 1, 2, 0, 2, 0, 2, 0, 2, 1, 2, 1, 1, 1, 2, 0, 1, 1, 1, 0, 2, 1, 2, 0, 1, 1
Offset: 0

Views

Author

N. J. A. Sloane, Sep 18 2022

Keywords

Comments

These are the edge labels in the tree. The initial a(0) = 0 is by convention.

Links

Crossrefs

Cf. A355904, A355906-A355913.
Showing 1-2 of 2 results.

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

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