Number of ultradissimilarity relations on an n-set.
A005121
Number of ultradissimilarity relations on an n-set.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =32a(4) =436a(5) =9012a(6) =262760a(7) =10270696a(8) =518277560a(9) =32795928016
External references
- oeis: A005121