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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.

A001329 Number of nonisomorphic groupoids with n elements.

Table of values

n a(n)
0 1
1 1
2 10
3 3330
4 178981952
5 2483527537094825
6 14325590003318891522275680
7 50976900301814584087291487087214170039
8 155682086691137947272042502251643461917498835481022016

List of values

[1, 1, 10, 3330, 178981952, 2483527537094825, 14325590003318891522275680, 50976900301814584087291487087214170039, 155682086691137947272042502251643461917498835481022016]

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

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