2181737

Properties

Appears in sequences

• a(n) is the smallest prime q such that (r-q)/(q-p) = n, where p<q<r are consecutive primes (or 0 if no such prime exists).at n=15A179210
• Least prime such that between it and the next prime there are exactly n semiprimes.at n=31A228171
• Records in A179210.at n=6A278574
• Prime numbersat n=161441