57329

Properties

Appears in sequences

• Primes p such that p+2, 2p+1, and 2p+3 are also prime.at n=16A069142
• Primes p such that 13 is the largest of all prime factors of the numbers between p and the next prime (cf. A052248).at n=27A080188
• Number of perfect squared squares of order n up to symmetries of the square and of its squared subrectangles, if any.at n=30A181735
• Sophie Germain primes that are also highly cototient numbers.at n=18A209194
• Numbers n such that n is a twin prime and 2n + 1 is a twin prime.at n=17A261463
• Primes p(n) such that p(n) + p(n+3) = p(n+1) + p(n+2) and p(n) + p(n+4) = p(n+2) + p(n+3).at n=39A266882
• a(n) = 28*2^n - 15.at n=11A305155
• Prime numbersat n=5813