641550

Appears in sequences

• Numbers n such that n-29, n-1, n+1 and n+29 are consecutive primes.at n=13A265651
• Integers x such that there exist two integers 0<x<=y<=z such that psi(x) = psi(y) = psi(z) = x + y + z.at n=21A385852
• Integers y such that there exist two integers 0<x<=y<=z such that psi(x) = psi(y) = psi(z) = x + y + z.at n=18A386901