70957

Properties

Appears in sequences

• Divide primes in groups with 2n+1 elements and add together.at n=17A109725
• Primes p such that 2p + 3, 4p + 9, 3p + 2 and 9p + 8 are also primes.at n=26A176619
• L.g.f.: -log(1 - Sum_{n>=1} x^(n^2)) = Sum_{n>=1} a(n)*x^n/n.at n=31A219331
• Primes (with d digits, say) that generate another prime when acted on by the "standard" superpermutation of length A007489(d) of d elements (cf. comment).at n=39A244311
• Primes p such that p+A003132(p),(p+A003132(p))+A003132(p+A003132(p)), p-A003132(p), and (p-A003132(p))-A003132(p-A003132(p)) are prime.at n=1A342960
• Numbers k such that there exists i >= 1 such that k divides 3^3^i - 1.at n=26A367265
• Primes p such that the multiplicative order of 3 modulo p is a power of 3.at n=10A367648
• Prime numbersat n=7027