Number of transitive reflexive early confluent binary relations R on n labeled elements where |{y : xRy}| <= 9 for all x.
A210917
Number of transitive reflexive early confluent binary relations R on n labeled elements where |{y : xRy}| <= 9 for all x.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =26a(4) =243a(5) =2992a(6) =45906a(7) =845287a(8) =18182926a(9) =447797646a(10) =12327513326a(11) =374460094229
External references
- oeis: A210917