Number of nonprimes among the numbers in {1,2,3,...,n!} which are relatively prime to n!.
A067393
Number of nonprimes among the numbers in {1,2,3,...,n!} which are relatively prime to n!.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =5a(6) =67a(7) =481a(8) =4989a(9) =51979a(10) =570755a(11) =5865449a(12) =74226518a(13) =904772855a(14) =13111019601a(15) =202135743076
External references
- oeis: A067393