a(n) is the sum of the divisors of the n-th primorial: a(n) = A000203(A002110(n)).
A054640
a(n) is the sum of the divisors of the n-th primorial: a(n) = A000203(A002110(n)).
Terms
- a(0) =1a(1) =3a(2) =12a(3) =72a(4) =576a(5) =6912a(6) =96768a(7) =1741824a(8) =34836480a(9) =836075520a(10) =25082265600a(11) =802632499200
External references
- oeis: A054640