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%I #20 Aug 12 2023 12:37:33
%S 0,2,12,69,422,2728
%N a(n) = log_2(B[4,n]), where B[4,n] is the order of Burnside group of exponent 4 and rank n (A079682).
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/BurnsideProblem.html">Burnside Problem</a>
%Y Cf. A079682, A004006 (log_3(B[3,n])).
%K nonn,more
%O 0,2
%A _Eric W. Weisstein_, Feb 12 2006
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