Number of transitive relations on n unlabeled points.
A091073
Number of transitive relations on n unlabeled points.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =39a(4) =242a(5) =1895a(6) =19051a(7) =246895a(8) =4145108a(9) =90325655a(10) =2555630036a(11) =93810648902
External references
- oeis: A091073