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%I #9 Jun 21 2018 15:14:31
%S 1,2,1,3,3,4,8,9,13,16,32,35,53,68,92,157,193,264,356,487,609,1036,
%T 1224,1729,2237,3072,3904,5227,7853,9764,13148,17261,22817,29512,
%U 38980,48999,72953,88828,119376,152449,202941,255592,337472
%N "CFK" (necklace, size, unlabeled) transform of 2,1,1,1...
%H Andrew Howroyd, <a href="/A032140/b032140.txt">Table of n, a(n) for n = 0..1000</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)={apply(p->subst(serlaplace(p/y), y, 1), Vec(y-1 + (1 + 2*x*y)*prod(k=2, n, 1 + x^k*y + O(x*x^n))))} \\ _Andrew Howroyd_, Jun 21 2018
%K nonn
%O 0,2
%A _Christian G. Bower_
%E a(0)=1 prepended by _Andrew Howroyd_, Jun 21 2018
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