30570663

Appears in sequences

• a(n) = (H(n) - 1)*lcm{1,...,n}, where H(n) is the n-th harmonic number.at n=17A027457
• Numerator of 1/n + 2/(n-1) + 3/(n-2) + ... + (n-1)/2 + n.at n=16A027612
• Numerator of the Harary number for the path graph P_n.at n=17A160048