Iterate the map in A006369 starting at 8.

Terms

a(0) =8a(1) =11a(2) =15a(3) =10a(4) =13a(5) =17a(6) =23a(7) =31a(8) =41a(9) =55a(10) =73a(11) =97a(12) =129a(13) =86a(14) =115a(15) =153a(16) =102a(17) =68a(18) =91a(19) =121a(20) =161a(21) =215a(22) =287a(23) =383a(24) =511a(25) =681a(26) =454a(27) =605a(28) =807a(29) =538