a(n) = sigma_4(n^4)/sigma(n^4).

A077455

a(n) = sigma_4(n^4)/sigma(n^4).

Terms

    a(0) =1a(1) =2255a(2) =360205a(3) =8965359a(4) =195688121a(5) =812262275a(6) =11869610005a(7) =36654862063a(8) =190649623129a(9) =441276712855

External references