a(1) = 2; a(n) for n > 1 is the smallest k > a(n-1) such that the harmonic mean of the divisors of k is one of the previous terms a(1), ..., a(n-1).
A164829
a(1) = 2; a(n) for n > 1 is the smallest k > a(n-1) such that the harmonic mean of the divisors of k is one of the previous terms a(1), ..., a(n-1).
Terms
- a(0) =2a(1) =6a(2) =270a(3) =2701389600a(4) =71271827200
External references
- oeis: A164829