468930

Appears in sequences

• Numbers k such that sopfr(k) = ud(k), where sopfr = A001414 and ud = A034444.at n=10A064029
• 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=12A385852