One half of product of first n primes A000040.
A070826
One half of product of first n primes A000040.
Terms
- a(0) =1a(1) =3a(2) =15a(3) =105a(4) =1155a(5) =15015a(6) =255255a(7) =4849845a(8) =111546435a(9) =3234846615a(10) =100280245065
External references
- oeis: A070826