Number of connected labeled T_4-topologies with n points.
A006058
Number of connected labeled T_4-topologies with n points.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =16a(4) =145a(5) =2111a(6) =47624a(7) =1626003a(8) =82564031a(9) =6146805142a(10) =662718022355
External references
- oeis: A006058