Number of sets of nonempty subsets of {1..n} satisfying a strict version of the axiom of choice in more than one way.
A367772
Number of sets of nonempty subsets of {1..n} satisfying a strict version of the axiom of choice in more than one way.
Terms
- a(0) =0a(1) =0a(2) =1a(3) =23a(4) =1105a(5) =154941a(6) =66072394a(7) =88945612865
External references
- oeis: A367772