365073

Appears in sequences

• a(n) = (1/4 + 1/6 + ... + 1/c(n))*LCM{4, 6, ..., c(n)}, where c(n) = n-th composite number.at n=14A025545
• a(n) = T(n,2n-1), T given by A027023.at n=14A027050