30341

Properties

Appears in sequences

• Primes that remain prime through 3 iterations of function f(x) = 8x + 3.at n=9A023292
• Primes p from A031924 such that A052180(primepi(p)) = 19.at n=22A052235
• Number of partitions of n such that largest part k occurs at most floor(k/2) times.at n=38A118084
• a(n) = Sum_{k=1..n} k*lcm(k,k')/gcd(k,k'), where k' is arithmetic derivative of k.at n=26A190122
• Primes p such that A276173(p) = p.at n=42A276174
• Prime numbersat n=3280