a(n) = number of primes <= !n, where !n is subfactorial n.
A126701
a(n) = number of primes <= !n, where !n is subfactorial n.
Terms
- a(0) =0a(1) =0a(2) =1a(3) =4a(4) =14a(5) =56a(6) =283a(7) =1738a(8) =12457a(9) =102492a(10) =951651a(11) =9830851a(12) =111757480a(13) =1385739200a(14) =18604785172a(15) =268807211509
External references
- oeis: A126701