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%I A191947 #10 Oct 07 2019 11:13:33
%S A191947 1,1,1,59,245351
%N A191947 Number of Mobius arrangements of pseudolines of order n.
%H A191947 J. Ferté, V. Pilaud and M. Pocchiola, <a href="https://arxiv.org/abs/1009.1575">On the number of simple arrangements of five double pseudolines</a>, arXiv:1009.1575 [cs.CG], 2010; Discrete Comput. Geom. 45 (2011), 279-302.
%K A191947 nonn,more
%O A191947 0,4
%A A191947 _N. J. A. Sloane_, Jun 20 2011

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