87627

Appears in sequences

• Number of ordered 5-tuples of integers from [ 1,n ] with no common factors among triples.at n=28A015656
• a(n) is the smallest semiprime such that difference between a(n) and next semiprime, b(n), is n.at n=35A131109
• Middle of three consecutive semiprimes with common prime factor = 3.at n=1A131409
• a(n) = least member of A006881 whose difference from the following one equals n, or 0 if no such semiprime exists.at n=35A140784