Number of connected 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.
A288561
Number of connected 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) =6a(3) =112a(4) =15528
External references
- oeis: A288561