80447

Properties

Appears in sequences

• Start of a string of exactly 3 consecutive (but disjoint) pairs of twin primes.at n=11A035791
• Primes p giving prime quadruples (30p+11, 30p+13, 30p+17, 30p+19).at n=32A087771
• Lesser of the first pair of three successive prime pairs (no isolated primes occur in between). Least of the six successive primes which are member of prime pairs.at n=18A090953
• First of six consecutive primes that are three sets of twin primes.at n=17A136143
• Lesser of twin primes p1 such that p1*p2-4 and p1*p2-6 are twin prime numbers.at n=30A174957
• Lesser of twin primes of (29n + 1, 29n + 3).at n=34A248620
• Find the first (maximal) string, of length exactly n, of consecutive primes that alternate between types 6*k+1 and 6*k+5 or 6*k+5 and 6*k+1. The first element is a(n).at n=14A289237
• a(n) is the smallest lesser twin prime p from A001359 such that the distance to the previous lesser twin prime is 6*n.at n=35A340573
• Prime numbers preceded by two consecutive numbers which are products of four distinct primes (or tetraprimes).at n=37A361796
• Prime numbersat n=7874