42197

Properties

Appears in sequences

• Numbers which are primes and which remain prime for three successive applications of incrementing each digit by 2 with carries ignored.at n=34A088787
• a(n) = smallest prime q > a(n-1) such that 2*prime(n)*q^prime(n)+1 is also prime.at n=13A225747
• Seventh 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=32A238679
• Primes of the form 2k^2 + k + 2.at n=24A249606
• Primes of form n^2 + 14641.at n=18A256839
• Primes p such that if q is the next prime, p+A004086(q) and q+A004086(p) are prime.at n=45A351728
• Prime numbersat n=4412