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%I #13 Sep 11 2018 21:22:44
%S 1,2,4,14,72,262,2266,13582,78952,1073318,6111354,51512782,711544290,
%T 7083724494,53971180750,497724073414,12107546905192,92786772785254,
%U 1022794345965706,9782774173172782,237827594204392882,3191236514753612878,31668668622796517470
%N "CGJ" (necklace, element, labeled) transform of 2,2,2,2...
%H Andrew Howroyd, <a href="/A032147/b032147.txt">Table of n, a(n) for n = 0..200</a>
%H C. G. Bower, <a href="/transforms2.html">Transforms (2)</a>
%H <a href="/index/Lu#Lyndon">Index entries for sequences related to Lyndon words</a>
%o (PARI) seq(n)=[subst(serlaplace(p/y),y,1) | p <- Vec(y-1+serlaplace(prod(k=1, n, 1 + x^k*y/k! + O(x*x^n))^2))] \\ _Andrew Howroyd_, Sep 11 2018
%K nonn
%O 0,2
%A _Christian G. Bower_
%E a(0)=1 prepended and terms a(20) and beyond from _Andrew Howroyd_, Sep 11 2018
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