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.

1, 1, 1, 8, 278, 144395, 436634633

Offset

0,4

Comments

For more information, see A296406.

Links

Table of n, a(n) for n=0..6.

Crossrefs

Cf. A250001, A275923, A275924, A288554-A288568, A296406, A296407-A296412, A006248.

Sequence in context: A045479 A179570 A201188 * A281763 A280761 A247215

Adjacent sequences: A296408 A296409 A296410 * A296412 A296413 A296414

Keyword

nonn,more

Author

Manfred Scheucher, Dec 11 2017

Extensions

a(7) corrected by Manfred Scheucher, May 09 2018

Status

approved