Number of primes in the reduced residue system of n-th primorial number (=A002110(n)).
A048862
Number of primes in the reduced residue system of n-th primorial number (=A002110(n)).
Terms
- a(0) =0a(1) =0a(2) =1a(3) =7a(4) =42a(5) =338a(6) =3242a(7) =42324a(8) =646021a(9) =12283522a(10) =300369786a(11) =8028642999a(12) =259488750732
External references
- oeis: A048862