Possible numbers of complements of topologies on 5 points.
A018196
Possible numbers of complements of topologies on 5 points.
Terms
- a(0) =1a(1) =4a(2) =8a(3) =9a(4) =15a(5) =32
External references
- oeis: A018196
A018196
Possible numbers of complements of topologies on 5 points.