57331

Properties

Appears in sequences

• Primes p whose period of reciprocal equals (p-1)/13.at n=14A098680
• Primes that are a concatenation of 5, 7 and a prime.at n=23A101249
• Primes p such that there exist primes p'<p"<p"'<p""<p such that the concatenation of any two among the {p,...,p""} is prime.at n=12A139005
• a(1) = 3, a(n + 1) = 1 + a(n) + least odd prime factor of a(n).at n=35A144751
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, 0, 0), (0, 0, 1), (1, 0, 0), (1, 1, -1)}.at n=9A150086
• Write exp(-x) = Product_{n>=1} (1 + g_n * x^n); a(n) = numerator(g_n).at n=25A170910
• a(n) = 2*a(n-1) + 13, a(1)=1.at n=12A173873
• Primes of the form 2*n^2 + 34*n + 15.at n=14A217494
• Number of order-preserving or order-reversing full contraction mappings of an n-chain.at n=12A221882
• Largest prime with n hexadecimal digits which is a right-truncatable prime in base 16.at n=3A237602
• Least prime p such that p+n is product of (n+1) primes (with multiplicity).at n=13A255092
• Centered 14-gonal (or tetradecagonal) primes.at n=21A264821
• Primes 10k + 1 preceding the maximal gaps in A268984.at n=8A268985
• a(n) is the least prime p such that the next prime after p with the same last digit as p is p+10*n.at n=23A328550
• a(n) is the least prime p = prime(k) such that the next prime with the same last digit as p is prime(k+n).at n=18A340800
• Prime numbersat n=5814