Denominator of sum of -3rd powers of divisors of n.

Terms

a(0) =1a(1) =8a(2) =27a(3) =64a(4) =125a(5) =6a(6) =343a(7) =512a(8) =729a(9) =500a(10) =1331a(11) =432a(12) =2197a(13) =343a(14) =375a(15) =4096a(16) =4913a(17) =648a(18) =6859a(19) =4000a(20) =1323a(21) =2662a(22) =12167a(23) =384a(24) =15625a(25) =8788a(26) =19683a(27) =2744a(28) =24389a(29) =125