1323199

Properties

Appears in sequences

• a(n) is the least integer k such that 1/(Sum_{j=1..n} 1/phi(k*j)) is an integer.at n=29A341810
• a(n) is the least integer k such that n/(Sum_{j=1..n} 1/phi(k*j)) is an integer.at n=29A341813
• Prime numbersat n=101680