Sum of composite divisors of n that are not primes nor prime powers.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =6a(6) =0a(7) =0a(8) =0a(9) =10a(10) =0a(11) =18a(12) =0a(13) =14a(14) =15a(15) =0a(16) =0a(17) =24a(18) =0a(19) =30a(20) =21a(21) =22a(22) =0a(23) =42a(24) =0a(25) =26a(26) =0a(27) =42a(28) =0a(29) =61