334142

Appears in sequences

• Least number which becomes prime after exactly n iterations of f(x) = sum of prime factors of x.at n=11A047830
• Least number which becomes prime or 4 after exactly n iterations of f(x) = sum of prime factors of x.at n=13A048133
• Smallest k such that A002217(k)=n.at n=13A121360
• Expansion of e.g.f. exp(x + Sum_{k>=2} prime(k-1)*x^k/k!).at n=9A300632