168049

Appears in sequences

• Becomes prime after exactly 9 iterations of f(x) = sum of prime factors of x.at n=12A047828
• G.f. A(x) defined by: A(x)^3 consists entirely of integer coefficients between 1 and 3 (A083953); A(x) is the unique power series solution with A(0)=1.at n=30A084203