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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.

A350875 a(n) is the number of nonisomorphic left-right-alternative magmas with n elements. That is, a(n) is the number of nonisomorphic magmas with n elements which satisfy the identities (xx)y = x(xy) and x(yy) = (xy)y for all x and y.

Table of values

n a(n)
0 1
1 1
2 5
3 43
4 2027
5 1005972

List of values

[1, 1, 5, 43, 2027, 1005972]

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

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