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.

A175882 Number of groupoids of order n with no identity element.

Table of values

n a(n)
0 1
1 0
2 12
3 19440
4 4293918720
5 298022460937500000
6 10314424627908807366593740800
7 256923577502496762167593902921782457650400
8 6277101735385253516143083463326608130132905949327651766272
9 196627050475552807506414708879663572595247698231546775823411085055396409324160

List of values

[1, 0, 12, 19440, 4293918720, 298022460937500000, 10314424627908807366593740800, 256923577502496762167593902921782457650400, 6277101735385253516143083463326608130132905949327651766272, 196627050475552807506414708879663572595247698231546775823411085055396409324160]

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

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