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.

User: Choiwah Chow

Choiwah Chow's wiki page.

Choiwah Chow has authored 3 sequences.

A359110 Number of Boolean monoids of order 2^n up to isomorphism.

Original entry on oeis.org

1, 5, 83, 242547
Offset: 1

Views

Author

Choiwah Chow, Dec 18 2022

Keywords

Links

Crossrefs

Cf. A090802, A066534, A198085, A342908, A058129, A058129.

A358461 Number of near-rings with identity of order n, up to isomorphism.

Original entry on oeis.org

1, 1, 6, 1, 1, 1, 53, 11, 1, 1, 11, 1, 1, 1, 4274, 1, 26, 1
Offset: 2

Views

Author

Choiwah Chow, Dec 17 2022

Keywords

Comments

a(2) - a(19) were generated by Mace4 with the cube-and-conquer and the invariant algorithms.

References

  • G. Pilz, Near-rings: The Theory and Its Applications, Elsevier, 1977.

Links

Crossrefs

Cf. A305858 and A037221 for various sequences related to near-rings.

A359181 Number of commutative BCK-algebras of order n up to isomorphism.

Original entry on oeis.org

1, 2, 5, 11, 28, 72, 192, 515, 1426
Offset: 2

Views

Author

Choiwah Chow, Dec 18 2022

Keywords

Comments

a(2)-a(10) were generated using the model enumerator Mace4.

Links

Crossrefs

Cf. A287141, A062980, A281270.

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