141937

Properties

Appears in sequences

• Numbers that are the smallest of four consecutive primes, no three of which sum to a nonprime.at n=28A298763
• a(n) is the smallest prime k such that (prime(n), k, u, v) are the vertices of a square in Ulam's spiral, where k < u < v are all primes; or -1 if there is no such k.at n=19A383595
• Prime numbersat n=13179