Number of 7-covers of an unlabeled n-set.
A055066
Number of 7-covers of an unlabeled n-set.
Terms
- a(0) =1a(1) =7a(2) =62a(3) =664a(4) =8609a(5) =127415a(6) =2004975a(7) =31500927a(8) =474504448a(9) =6708348262a(10) =88249739792
External references
- oeis: A055066