175197
domain: N
Appears in sequences
- a(n) is smallest number m such that m = n*pi(m), where pi(k) = number of primes <= k (A000720).at n=9A038625
- a(n) is the largest number in the set of solutions to n=x/pi(x), where pi(x)=A000720(x).at n=9A087235
- Consecutive min and max-terms of solution-clusters of A057809, i,e, least and largest solutions to n=x/A000720[x].at n=18A087241
- Consecutive min and max-terms of solution-clusters of A057809, i,e, least and largest solutions to n=x/A000720[x].at n=19A087241
- a(n) is the smallest number such that pi(n) divides n a record-breaking prime number of times.at n=4A121971