671353

Properties

Appears in sequences

• a(n) and a(n)+4^k are primes at least for k=1,2,3,4,5.at n=19A049495
• a(n) and a(n)+4^k are primes at least for k=1,2,3,4,5,6.at n=7A049496
• a(n) and a(n)+4^k are primes at least for k=1,2,3,4,5,6,7.at n=5A049497
• a(n) and a(n)+4^k are primes at least for k=1,2,3,4,5,6,7,8.at n=3A049498
• Smallest prime p such that p + 4^k is also prime for all k = 1, ..., n.at n=8A049500
• a(0) = 2, a(n) = smallest prime p such that none of p - 1, p - 2,... p - n are squarefree.at n=7A257545
• Primes p such that p+2^4, p+2^6, p+2^8, p+2^10 and p+2^12 are all primes.at n=22A269259
• Primes p such that p+2^4, p+2^6, p+2^8, p+2^10, p+2^12 and p+2^14 are all primes.at n=11A269859
• Primes p such that p+2^4, p+2^6, p+2^8, p+2^10, p+2^12, p+2^14 and p + 2^16 are all primes.at n=4A270203
• Prime numbersat n=54412