a(n) = the smallest n-digit number with exactly 7 divisors, a(n) = 0 if no such number exists.

A182673

a(n) = the smallest n-digit number with exactly 7 divisors, a(n) = 0 if no such number exists.

Terms

    a(0) =0a(1) =64a(2) =729a(3) =0a(4) =15625a(5) =117649a(6) =1771561a(7) =24137569a(8) =148035889a(9) =2565726409a(10) =10779215329a(11) =128100283921

External references