Palindromic in base 9.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =5a(6) =6a(7) =7a(8) =8a(9) =10a(10) =20a(11) =30a(12) =40a(13) =50a(14) =60a(15) =70a(16) =80a(17) =82a(18) =91a(19) =100a(20) =109a(21) =118a(22) =127a(23) =136a(24) =145a(25) =154a(26) =164a(27) =173a(28) =182a(29) =191