a(n) = Product_{k=1..n} P(k), where P(k) is the smallest prime >= 2*k.
A118748
a(n) = Product_{k=1..n} P(k), where P(k) is the smallest prime >= 2*k.
Terms
- a(0) =2a(1) =10a(2) =70a(3) =770a(4) =8470a(5) =110110a(6) =1871870a(7) =31821790a(8) =604614010a(9) =13906122230a(10) =319840811290
External references
- oeis: A118748