This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A296411 #16 May 10 2018 03:29:48 %S A296411 1,1,1,8,278,144395,436634633 %N A296411 Number of non-isomorphic cylindrical arrangements of n pairwise intersecting pseudo-circles on a sphere, in the sense that two cells of the arrangement are separated by each of the pseudo-circles, reduced for mirror symmetry. %C A296411 For more information, see A296406. %Y A296411 Cf. A250001, A275923, A275924, A288554-A288568, A296406, A296407-A296412, A006248. %K A296411 nonn,more %O A296411 0,4 %A A296411 _Manfred Scheucher_, Dec 11 2017 %E A296411 a(7) corrected by _Manfred Scheucher_, May 09 2018