Odd numbers k for which A000005(2*k) >= A017665(2*k), where A000005 is the number of divisors function, and A017665 is the numerator of the abundancy ratio, sigma(k)/k.

A388277

Odd numbers k for which A000005(2*k) >= A017665(2*k), where A000005 is the number of divisors function, and A017665 is the numerator of the abundancy ratio, sigma(k)/k.

Terms

    a(0) =3a(1) =117a(2) =135a(3) =585a(4) =819a(5) =1485a(6) =4095a(7) =5733a(8) =9009a(9) =13923a(10) =77805a(11) =92781a(12) =108927a(13) =118755a(14) =544635a(15) =931095a(16) =1303533a(17) =2723175a(18) =2876211a(19) =2878785a(20) =2941029a(21) =4147605a(22) =4466007a(23) =5990985a(24) =6517665a(25) =14705145a(26) =15828615a(27) =21415185a(28) =22160061a(29) =22330035

External references