a(n) is the sum of the divisors of Fibonacci(n) (A000045).

Terms

a(0) =1a(1) =1a(2) =3a(3) =4a(4) =6a(5) =15a(6) =14a(7) =32a(8) =54a(9) =72a(10) =90a(11) =403a(12) =234a(13) =420a(14) =1116a(15) =1536a(16) =1598a(17) =5400a(18) =4332a(19) =12096a(20) =17724a(21) =18000a(22) =28658a(23) =157248a(24) =93062a(25) =122148a(26) =320760a(27) =473760a(28) =514230a(29) =2142720