a(n) = Sum_{composite c <= n} n!/c.
A110374
a(n) = Sum_{composite c <= n} n!/c.
Terms
- a(0) =6a(1) =30a(2) =300a(3) =2100a(4) =21840a(5) =236880a(6) =2731680a(7) =30048480a(8) =400498560a(9) =5206481280a(10) =79117758720
External references
- oeis: A110374