352704

Appears in sequences

• Composite numbers k such that phi(k) divides sigma(k) - 2*k.at n=32A068412
• a(n) is the number of ways to place n indistinguishable balls into n distinguishable boxes with at least one box remaining empty and not all balls placed in a single box.at n=10A371036
• Numbers k such that sigma(k) = 2*k + 3*phi(k).at n=10A392691