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 1-10 of 10 results.

A241840 Number of simple connected graphs on n nodes that are not distance-regular.

Original entry on oeis.org

0, 0, 1, 4, 19, 108, 851, 11112, 261076, 11716564
Offset: 1

Views

Author

Travis Hoppe and Anna Petrone, Apr 29 2014

Keywords

Crossrefs

Formula

a(n) = A001349(n) - A241814(n).

A243271 Number of unlabeled simple graphs with n nodes that are Hamiltonian and distance-regular.

Original entry on oeis.org

1, 0, 1, 2, 2, 4, 2, 5, 4, 6
Offset: 1

Views

Author

Travis Hoppe and Anna Petrone, Jun 02 2014

Keywords

Crossrefs

Cf. A003216 (Hamiltonian graphs), A241814 (distance-regular graphs).

A243319 Number of simple connected graphs with n nodes that are bipartite and distance regular.

Original entry on oeis.org

1, 1, 0, 1, 0, 2, 0, 3, 0, 3
Offset: 1

Views

Author

Travis Hoppe and Anna Petrone, Jun 03 2014

Keywords

Crossrefs

Cf. A003216 (bipartite graphs), A241814 (distance regular graphs).

A243322 Number of simple connected graphs with n nodes that are distance regular and Eulerian.

Original entry on oeis.org

1, 0, 1, 1, 2, 2, 2, 3, 4, 4
Offset: 1

Views

Author

Travis Hoppe and Anna Petrone, Jun 03 2014

Keywords

Crossrefs

Cf. A241814 (distance regular graphs), A003049 (Eulerian graphs).

A243329 Number of simple connected graphs with n nodes that are integral and distance regular.

Original entry on oeis.org

1, 1, 1, 2, 1, 4, 1, 4, 3, 6
Offset: 1

Views

Author

Travis Hoppe and Anna Petrone, Jun 03 2014

Keywords

Crossrefs

Cf. A241814 (distance regular graphs), A064731 (integral graphs).

A243334 Number of simple connected graphs with n nodes that are distance regular and triangle-free.

Original entry on oeis.org

1, 1, 0, 1, 1, 2, 1, 3, 1, 4, 1, 3, 1, 5, 1, 5, 1, 4
Offset: 1

Views

Author

Travis Hoppe and Anna Petrone, Jun 03 2014

Keywords

Crossrefs

Cf. A241814 (distance regular graphs), A024607 (triangle-free graphs).

Extensions

a(11)-a(18) from Max Alekseyev, Dec 29 2024

A243339 Number of simple connected graphs with n nodes that are distance regular and K_4 free.

Original entry on oeis.org

1, 1, 1, 1, 1, 3, 1, 3, 3, 4
Offset: 1

Views

Author

Travis Hoppe and Anna Petrone, Jun 03 2014

Keywords

Comments

K_4 is the complete graph on four vertices.

Crossrefs

Cf. A241814 (distance regular graphs), A079574 (K_4 free graphs).

A243546 Number of simple connected graphs with n nodes that are distance regular and have no subgraph isomorphic to the bowtie graph.

Original entry on oeis.org

1, 1, 1, 2, 1, 2, 1, 3, 1, 4
Offset: 1

Views

Author

Travis Hoppe and Anna Petrone, Jun 06 2014

Keywords

Crossrefs

Cf. A242792 (bowtie free graphs), A241814 (distance regular graphs).

A243554 Number of simple connected graphs with n nodes that are distance-regular and have no subgraph isomorphic to bull graph.

Original entry on oeis.org

1, 1, 1, 2, 1, 2, 1, 3, 1, 4
Offset: 1

Views

Author

Travis Hoppe and Anna Petrone, Jun 06 2014

Keywords

Crossrefs

Cf. A244427 (no bull subgraphs), A241814 (distance-regular graphs).

A243561 Number of simple connected graphs with n nodes that are distance regular and have no subgraph isomorphic to diamond graph.

Original entry on oeis.org

1, 1, 1, 1, 1, 2, 1, 3, 2, 4
Offset: 1

Views

Author

Travis Hoppe and Anna Petrone, Jun 06 2014

Keywords

Crossrefs

Cf. A242790 (diamond free graphs), A241814 (distance regular graphs).
Showing 1-10 of 10 results.