Number of 4-block covers of a labeled n-set.
A095153
Number of 4-block covers of a labeled n-set.
Terms
- a(0) =35a(1) =1225a(2) =24990a(3) =426650a(4) =6779185a(5) =104394675a(6) =1585021340a(7) =23909487700a(8) =359582866335
External references
- oeis: A095153