Smallest composite number with exactly n distinct prime factors with the property that the concatenation of its prime factors (with multiplicity), in descending order, is a palindrome.

A273776

Smallest composite number with exactly n distinct prime factors with the property that the concatenation of its prime factors (with multiplicity), in descending order, is a palindrome.

Terms

    a(0) =4a(1) =46a(2) =138a(3) =690a(4) =197890a(5) =5444670a(6) =156719940a(7) =4941906970a(8) =135969743910

External references