a(n) is smallest number A such that there is an equality of the form (A=Product of n distinct primes) = (B=Product of n distinct primes) + (C=Product of n distinct primes) with gcd(A,B) = gcd(B,C) = gcd(A,C) = 1, B < C.

A056600

a(n) is smallest number A such that there is an equality of the form (A=Product of n distinct primes) = (B=Product of n distinct primes) + (C=Product of n distinct primes) with gcd(A,B) = gcd(B,C) = gcd(A,C) = 1, B < C.