cp's OEIS Frontend

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.

A350873 a(n) is the number of non-isomorphic flexible magmas with n elements (i.e., number of magmas with n elements which satisfy the identity (xy)x = x(yx) for all x and y).

This page as a plain text file.
%I A350873 #13 Jan 23 2022 14:41:27
%S A350873 1,1,6,191,72148
%N A350873 a(n) is the number of non-isomorphic flexible magmas with n elements (i.e., number of magmas with n elements which satisfy the identity (xy)x = x(yx) for all x and y).
%H A350873 Wikipedia, <a href="https://en.wikipedia.org/wiki/Flexible_algebra">Flexible algebra</a>
%e A350873 There are 10 non-isomorphic magmas with 2 elements, and 6 of these are flexible magmas, so a(2) = 6.
%Y A350873 Cf. A001329 (magmas), A027851.
%K A350873 nonn,hard,more
%O A350873 0,3
%A A350873 _Joel Brennan_, Jan 20 2022