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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.

A079196 Number of isomorphism classes of non-associative commutative closed binary operations on a set of order n.

Table of values

n a(n)
0 0
1 0
2 1
3 117
4 43910
5 254429575
6 30468670168769
7 91267244789189717968
8 8048575431238519331999349995
9 24051927835861852500932966021639447717
10 2755731922430783367615449408031031255128360423993

List of values

[0, 0, 1, 117, 43910, 254429575, 30468670168769, 91267244789189717968, 8048575431238519331999349995, 24051927835861852500932966021639447717, 2755731922430783367615449408031031255128360423993]

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

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