a(n) is the denominator of 1/prime(n) + 2/prime(n-1) + 3/prime(n-2) + ... + (n-1)/3 + n/2.
A354860
a(n) is the denominator of 1/prime(n) + 2/prime(n-1) + 3/prime(n-2) + ... + (n-1)/3 + n/2.
Terms
- a(0) =2a(1) =3a(2) =30a(3) =35a(4) =2310a(5) =15015a(6) =34034a(7) =4849845a(8) =223092870a(9) =154040315a(10) =200560490130a(11) =742073813481
External references
- oeis: A354860