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.

Previous Showing 21-26 of 26 results.

A366010 Number of fixed polyominoids with n cells, allowing any corner-connections and right-angled edge-connections.

Original entry on oeis.org

3, 42, 910, 22707, 614535
Offset: 1

Views

Author

Pontus von Brömssen, Sep 28 2023

Keywords

Comments

See A365995 for further details and a table of related sequences.

Links

Crossrefs

Cf. A365995, A366009 (free).
29th row of A366767.

A366339 Number of fixed (4,2)-polyominoids with n cells, allowing right-angled (or hard) connections only.

Original entry on oeis.org

6, 48, 592, 8664, 140088, 2414056
Offset: 1

Views

Author

Pontus von Brömssen, Oct 07 2023

Keywords

Comments

Two squares sharing an edge have a right-angled connection if they do not lie in the same plane.
Connections that are not right-angled (flat connections) may occur, but the polyominoids considered here must be connected through right-angled connections only.

Links

Crossrefs

Cf. A075678, A365655, A366335, A366338 (free), A366341.
45th row of A366767.

A366341 Number of fixed (4,3)-polyominoids with n cells, allowing right-angled (or hard) connections only.

Original entry on oeis.org

4, 24, 200, 1924, 20228, 225788, 2631672
Offset: 1

Views

Author

Pontus von Brömssen, Oct 07 2023

Keywords

Comments

Two cubes sharing a face have a right-angled connection if they do not lie in the same 3-dimensional affine subspace.
Connections that are not right-angled (flat connections) may occur, but the polyominoids considered here must be connected through right-angled connections only.
Also, number of fixed polysticks in 4 dimensions with right-angled connections.

Links

Crossrefs

Cf. A075678, A365655, A366337, A366339, A366340 (free).
41st and 77th row of A366767.

A365996 Number of fixed polyominoids with n cells, allowing flat corner-connections and right-angled edge-connections.

Original entry on oeis.org

3, 18, 182, 2211, 29787, 427249
Offset: 1

Views

Author

Pontus von Brömssen, Sep 26 2023

Keywords

Comments

See A365995 for further details and a table of related sequences.

Links

Crossrefs

Cf. A365995 (free).
21st row of A366767.

A039741 Number of fixed n-celled lattice animals in the b.c.c. lattice (8 nearest neighbors), or connected truncated octahedra, or vertex-connected cubes.

Original entry on oeis.org

1, 4, 28, 216, 1790, 15587, 140746, 1305920, 12374069, 119223556, 1164465225, 11502924648, 114721053058, 1153539900783
Offset: 1

Views

Author

Achim Flammenkamp

Keywords

Links

Crossrefs

Cf. A038171 (free).
35th row of A366767.

A039742 Number of fixed n-celled lattice animals in the f.c.c. lattice (12 nearest neighbors), or connected rhombic dodecahedra, or edge-connected cubes.

Original entry on oeis.org

1, 6, 50, 475, 4881, 52835, 593382, 6849415, 80757819, 968400940, 11773656517, 144791296055, 1797935761182
Offset: 1

Views

Author

Achim Flammenkamp

Keywords

Links

Crossrefs

Cf. A038173 (free).
33rd row of A366767.
Previous Showing 21-26 of 26 results.

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

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