a(n) is the least number ending in at least n identical digits that has exactly n prime divisors, counted with multiplicity.
A388789
a(n) is the least number ending in at least n identical digits that has exactly n prime divisors, counted with multiplicity.
Terms
- a(0) =2a(1) =22a(2) =222a(3) =4444a(4) =88888a(5) =222222a(6) =18888888a(7) =1455555555a(8) =13888888888a(9) =54444444444
External references
- oeis: A388789