Start with 1 and repeatedly reverse the digits and add 36 to get the next term.

Terms

a(0) =1a(1) =37a(2) =109a(3) =937a(4) =775a(5) =613a(6) =352a(7) =289a(8) =1018a(9) =8137a(10) =7354a(11) =4573a(12) =3790a(13) =1009a(14) =9037a(15) =7345a(16) =5473a(17) =3781a(18) =1909a(19) =9127a(20) =7255a(21) =5563a(22) =3691a(23) =1999a(24) =10027a(25) =72037a(26) =73063a(27) =36073a(28) =37099a(29) =99109