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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.

A258719 Number of self-dual noncommutative groupoids with n elements.

Table of values

n a(n)
1 0
2 0
3 9
4 16192
5 198862625
6 42002510818752
7 207278622607612079818
8 29215384735442091573649485568
9 137562588659577384442574662095693261747
10 24724406349174154904254665510689036571978910174560

List of values

[0, 0, 9, 16192, 198862625, 42002510818752, 207278622607612079818, 29215384735442091573649485568, 137562588659577384442574662095693261747, 24724406349174154904254665510689036571978910174560]

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

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