28163

Properties

Appears in sequences

• Safe primes (A005385) (p and (p-1)/2 are primes) such that 12*p+1 is also prime.at n=54A075707
• Smallest prime of the form k*prime(n+1)+prime(n) = j*prime(n+2)+prime(n+1) for free integer multipliers k and j.at n=11A129918
• Prime numbers ending in the prime number 163.at n=10A167627
• Number of nondecreasing arrays of n 0..n-1 integers with the sum of their 2nd powers equal to sum(i^2,i=0..n-1).at n=13A216630
• Denominators of upper primes-only best approximates (POBAs) to sqrt(8); see Comments.at n=13A265793
• Number of placements of zero or more dominoes on a 2 X n grid where no two empty squares are horizontally adjacent.at n=12A329707
• Primes p such that p^6 - 1 has 384 divisors.at n=18A341666
• Discriminants of imaginary quadratic fields with class number 33 (negated).at n=37A351671
• Primes p such that p^2 + 1 has more divisors than p^2 - 1.at n=16A358879
• Prime numbersat n=3071