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.

A355908 A335905(n) + A335906(n).

Original entry on oeis.org

0, 2, -2, 4, -6, 10, -14, 22, -32, 50, -74, 112, -168, 254, -380, 572, -858, 1288, -1932, 2900
Offset: 0

Views

Author

N. J. A. Sloane, Sep 19 2022

Keywords

Comments

This is also -2*A355907(n).

Links

Crossrefs

Cf. A355904-A355907, A355909-A355913.

A355910 Number of nodes at level n in the tree T_{-2}.

Original entry on oeis.org

1, 1, 1, 2, 3, 4, 6, 9, 14, 21, 31, 47, 71, 106, 159, 239, 358, 537, 806, 1209, 1813, 2719, 4079, 6119
Offset: 0

Views

Author

N. J. A. Sloane, Sep 19 2022

Keywords

Comments

First differences of A355909.

Links

Crossrefs

Cf. A355904-A355909, A355911-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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