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.

A084283 Number of connected labeled 3-colorable (i.e., chromatic number <= 3) graphs on n nodes.

Original entry on oeis.org

1, 1, 4, 37, 667, 21886, 1262719, 125387767, 21009091072, 5809425721381, 2596693747042999, 1844571022305443422
Offset: 1

Views

Author

Eric W. Weisstein, May 25 2003

Keywords

Links

Crossrefs

Cf. A001832, A084273, A084279, A084283, A084284, A084285, A084286.

Formula

Logarithmic transform of A084279. - Andrew Howroyd, Dec 02 2018

Extensions

a(7)-a(12) from Andrew Howroyd, Dec 02 2018

A084284 Number of connected labeled 4-colorable (i.e., chromatic number <= 4) graphs on n nodes.

Original entry on oeis.org

1, 1, 4, 38, 727, 26538, 1832900, 241187797, 60807843592, 29307734588670, 26725594885115575
Offset: 1

Views

Author

Eric W. Weisstein, May 25 2003

Keywords

Links

Crossrefs

Cf. A001832, A084274, A084280, A084283, A084285, A084286.

Formula

Logarithmic transform of A084280. - Andrew Howroyd, Dec 02 2018

Extensions

a(7)-a(11) from Andrew Howroyd, Dec 02 2018

A084285 Number of connected labeled 5-colorable (i.e., chromatic number <= 5) graphs on n nodes.

Original entry on oeis.org

1, 1, 4, 38, 728, 26703, 1865842, 251349147, 66151135747, 34319358639795, 35257449916868364
Offset: 1

Views

Author

Eric W. Weisstein, May 25 2003

Keywords

Links

Crossrefs

Cf. A001832, A084281, A084283, A084284, A084286.

Formula

Logarithmic transform of A084281. - Andrew Howroyd, Dec 02 2018

Extensions

a(7)-a(11) from Andrew Howroyd, Dec 02 2018
Showing 1-3 of 3 results.

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

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