42767

Properties

Appears in sequences

• Primes p from A031924 such that A052180(primepi(p)) = 19.at n=30A052235
• Class 7- primes.at n=28A081426
• Primes of the form 16*k-1 such that 4*k-1 and 8*k-1 are also primes.at n=20A101793
• Primes p such that (p^2+2)/3 and (p^4+2)/3 are prime.at n=38A256811
• Expansion of (x^2 + 254*x - 7)/(x^3 - 99*x^2 + 99*x - 1).at n=2A269555
• Primes p such that A001175(p) = 2*(p+1)/9.at n=31A308786
• Numbers m such that Conv(b,m) = b has a unique nontrivial solution (b = 0 and b = 1 are considered trivial solutions). Here, Conv(b,m) denotes the limit of b^^t (mod m) as t goes to infinity.at n=24A347561
• Prime numbersat n=4472