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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.

A236146 Number of primitive quandles of order n, up to isomorphism. A quandle is primitive if its inner automorphism groups acts primitively on it.

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%I A236146 #54 Nov 30 2014 14:11:18
%S A236146 1,0,1,1,3,0,5,2,3,1,9,0,11,1,3,15,0,17,0,1,0,21,0,10,0,8,2,27,0,29,6,
%T A236146 0,0,0
%N A236146 Number of primitive quandles of order n, up to isomorphism. A quandle is primitive if its inner automorphism groups acts primitively on it.
%C A236146 Since a primitive quandle is connected, we have a(n) <= A181771(n) for all n.
%C A236146 Furthermore, since a primitive quandle is simple, we have a(n) <= A196111(n) for all n.
%H A236146 James McCarron, <a href="/A236146/b236146.txt">Table of n, a(n) for n = 1..34</a>
%H A236146 Wikipedia, <a href="http://en.wikipedia.org/wiki/Racks_and_quandles">Racks and quandles</a>
%H A236146 James McCarron, <a href="http://arxiv.org/abs/1210.2150">Connected Quandles with Order Equal to Twice an Odd Prime</a>
%H A236146 Leandro Vendramin, <a href="http://arxiv.org/abs/1401.4574">Doubly transitive groups and cyclic quandles</a>
%F A236146 For odd primes p, a(p) = p - 2.
%Y A236146 Cf. A181771, A181769, A196111.
%K A236146 nonn,hard,more
%O A236146 1,5
%A A236146 _James McCarron_, Feb 03 2014