Number of transitive reflexive early confluent binary relations R on n labeled elements where |{y : xRy}| <= 5 for all x.
A210913
Number of transitive reflexive early confluent binary relations R on n labeled elements where |{y : xRy}| <= 5 for all x.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =26a(4) =243a(5) =2992a(6) =41223a(7) =660220a(8) =11979669a(9) =243048992a(10) =5448497434a(11) =133595966164
External references
- oeis: A210913