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%I #11 Jun 13 2017 13:12:51
%S 1,1,2,11,183,30408
%N Number of connected one-sided arrangements of n pseudo-circles in the affine plane, in the sense that the union of the solid pseudo-circles is a connected set.
%C Arrangements in A288563 that are connected (in the sense that the union of the solid pseudo-circles is a connected set).
%C These counts have not been reduced for mirror symmetry.
%C See A250001, the main entry for this problem, for further information.
%Y Cf. A250001, A275923, A275924, A288554-A288568.
%K nonn,more
%O 0,3
%A _N. J. A. Sloane_, Jun 13 2017, based on information supplied by _Jon Wild_ on Aug 31 2016.
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