626804494291domain: NAppears in sequencesa(0) = 1; a(n) = the smallest number k such that n numbers from k to k+n-1 have n distinct prime divisors, or 0 if no such number exists.at n=6A075044a(n) is the first term in a chain of at least n consecutive numbers each with exactly 6 distinct prime factors.at n=5A138206