Start with 100103 and repeatedly reverse the digits and add 2 to get the next term.

Terms

a(0) =100103a(1) =301003a(2) =300105a(3) =501005a(4) =500107a(5) =701007a(6) =700109a(7) =901009a(8) =900111a(9) =111011a(10) =110113a(11) =311013a(12) =310115a(13) =511015a(14) =510117a(15) =711017a(16) =710119a(17) =911019a(18) =910121a(19) =121021a(20) =120123a(21) =321023a(22) =320125a(23) =521025a(24) =520127a(25) =721027a(26) =720129a(27) =921029a(28) =920131a(29) =131031