23417

Properties

Appears in sequences

• Least prime in A031932 (lesser of 14-twins) whose distance to the next 14-twin is 6*n.at n=4A052356
• Primes p such that 8p +1 and (p-1)/8 are primes.at n=13A085958
• Numbers k such that k^4 = x^3 + y^2 has an integer solution.at n=44A096741
• Primes of the form n^2+8.at n=16A138338
• Primes p of the form A152539(n) + 1.at n=33A152540
• Totally multiplicative sequence with a(p) = a(p-1) + 8 for prime p.at n=36A166705
• Least positive x in the Diophantine equation x^3 + y^3 = n*z^3 (with x >= y and y != 0).at n=22A190356
• Primes that can be written as a sum of a positive square and a positive cube in more than two ways.at n=6A206606
• Primes of the form 15*k^2 - 15*k + 17.at n=29A220081
• Primes formed by inserting a semiprime between the semiprime's ordered factors.at n=3A229480
• Third prime p such that (p+n)^2+n is prime but (p+j)^2+j is not prime for all 0<j<n.at n=42A238675
• Fundamental discriminants d uniquely characterizing all complex biquadratic fields Q(sqrt(-3),sqrt(d)) which have 3-class group of type (3,3) and second 3-class group isomorphic to SmallGroup(729,37).at n=12A250240
• Primes of form n^2 + 4096.at n=20A256836
• Primes which, when added to their reversals, produce palindromic primes.at n=29A342681
• Primes p such that 14*p + 1 divides 2^p - 1.at n=19A350702
• Primes p such that the sum of cubes of the 4 consecutive primes starting with p is twice a prime.at n=25A368637
• a(n) = 4*n^3 + 5*n - 1.at n=17A383854
• Prime numbersat n=2608