283211

Properties

Appears in sequences

• prime(k) for those k where floor((2*(prime(k+1)-prime(k))*PrimePi(k) mod (8*k))/k) = m with m = 12.at n=31A109566
• Primes p such that q-p = 56, where q is the next prime after p.at n=7A204667
• a(n) is the smallest prime p whose decimal expansion begins with n and is such that the next prime is p+2n, or -1 if no such prime exists.at n=27A308438
• Prime numbersat n=24702