Number of distinct topologies on an n-set that have exactly 10 open sets.
A281778
Number of distinct topologies on an n-set that have exactly 10 open sets.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =24a(5) =900a(6) =18030a(7) =276570a(8) =3680964a(9) =45065160a(10) =523292010a(11) =5859909990a(12) =63862084704a(13) =680829769620
External references
- oeis: A281778