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.

A030260 Number of nonisomorphic commutative groupoids with no idempotents.

Original entry on oeis.org

1, 0, 1, 38, 13872, 83360520, 10203847031340, 31023254154131753920, 2765562268014305034000397632, 8332535835277886736134596954072281240, 960864308045670310058158724983067048253497223280
Offset: 0

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Author

Christian G. Bower, Feb 15 1998 and May 15 1998

Keywords

Links

Crossrefs

Cf. A001329, A001425, A038021.

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

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