Number of self-converse relations on n points.
A002500
Number of self-converse relations on n points.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =44a(4) =436a(5) =7176a(6) =222368a(7) =12376880a(8) =1302871456a(9) =254079924896
External references
- oeis: A002500