Number of connected one-sided arrangements of n pseudo-circles in the affine plane, in the sense that the union of the boundaries of the pseudo-circles is a connected set.
A288565
Number of connected one-sided arrangements of n pseudo-circles in the affine plane, in the sense that the union of the boundaries of the pseudo-circles is a connected set.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =6a(4) =139a(5) =28643
External references
- oeis: A288565