140228

Appears in sequences

• [ (4th elementary symmetric function of P(n))/(2nd elementary symmetric function of P(n)) ], where P(n) = {1, p(1), p(2), ..., p(n-1)}, where p(0) = 1.at n=26A024535
• Nonprime numbers k such that k | sigma_3(k) + phi(k)^3.at n=28A055970