a(n) = Sum_{i=1..n} ( Product_{k|i} d(k) ), where d(n) = A000005(n).

Terms

a(0) =1a(1) =3a(2) =5a(3) =11a(4) =13a(5) =29a(6) =31a(7) =55a(8) =61a(9) =77a(10) =79a(11) =367a(12) =369a(13) =385a(14) =401a(15) =521a(16) =523a(17) =811a(18) =813a(19) =1101a(20) =1117a(21) =1133a(22) =1135a(23) =10351a(24) =10357a(25) =10373a(26) =10397a(27) =10685a(28) =10687a(29) =14783