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%I #16 Jun 15 2017 13:52:50
%S 1,1,1,6,112,15502
%N Number of connected arrangements of n circles in the affine plane, in the sense that the union of the boundaries of the circles is a connected set.
%C Arrangements in A250001 that are connected, in the sense that the union of the (boundaries of the) circles is a connected set. See A250001, the main entry for this problem, for further information.
%H Jon Wild, <a href="/A275923/a275923.png">Figure showing relationship between A250001, A275923, A275924, and A288554 for n=3 circles</a>
%Y Cf. A250001, A275923, A288554-A288568.
%K nonn,more
%O 0,4
%A _N. J. A. Sloane_, Aug 29 2016, based on information supplied by _Jon Wild_.
%E a(5) corrected by _Jon Wild_, Aug 31 2016
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