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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.

A362643 Number of labeled magmas with n elements satisfying the equations (xy)y = x and x(yz) = xy.

Table of values

n a(n)
0 1
1 1
2 2
3 10
4 94
5 1636
6 49636
7 2489824
8 204626528
9 27296455456
10 5930440245856
11 2144594499551296
12 1333437360189448768
13 1510196144261999035648
14 3333925936841219018864384
15 15357830414682103475484461056
16 155003843551785210349182746546176

List of values

[1, 1, 2, 10, 94, 1636, 49636, 2489824, 204626528, 27296455456, 5930440245856, 2144594499551296, 1333437360189448768, 1510196144261999035648, 3333925936841219018864384, 15357830414682103475484461056, 155003843551785210349182746546176]

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

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