Number of disconnected or empty antichains of nonempty subsets of {1..n} (non-spanning edge-connectivity 0).
A327354
Number of disconnected or empty antichains of nonempty subsets of {1..n} (non-spanning edge-connectivity 0).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =8a(4) =53a(5) =747a(6) =45156a(7) =54804920
External references
- oeis: A327354