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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.

A090603 Number of n-element labeled groupoids with a fixed identity.

Table of values

n a(n)
1 1
2 2
3 81
4 262144
5 152587890625
6 28430288029929701376
7 2651730845859653471779023381601
8 178405961588244985132285746181186892047843328
9 11790184577738583171520872861412518665678211592275841109096961

List of values

[1, 2, 81, 262144, 152587890625, 28430288029929701376, 2651730845859653471779023381601, 178405961588244985132285746181186892047843328, 11790184577738583171520872861412518665678211592275841109096961]

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

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