Numerator of sum of -9th powers of divisors of n.

Terms

a(0) =1a(1) =513a(2) =19684a(3) =262657a(4) =1953126a(5) =93499a(6) =40353608a(7) =134480385a(8) =387440173a(9) =500976819a(10) =2357947692a(11) =1292535097a(12) =10604499374a(13) =2587675113a(14) =1423901192a(15) =68853957121a(16) =118587876498a(17) =7361363287a(18) =322687697780a(19) =256501107891a(20) =113474345696a(21) =302406791499a(23) =24510295355