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%I #11 Dec 23 2016 17:31:58
%S 1,2,5,18,102,817,7641
%N Number of analytic chord diagrams with n chords.
%H Étienne Ghys, <a href="http://arxiv.org/abs/1612.06373">A Singular Mathematical Promenade</a>, arXiv:1612.06373 [math.AG], 2016. See p. 252.
%Y Cf. A007769, A054499, A279208.
%K nonn,more
%O 1,2
%A _N. J. A. Sloane_, Dec 23 2016
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