(s(n)+1)/10, where s(n)=n-th base 10 palindrome that starts with 9.

Terms

a(0) =1a(1) =10a(2) =91a(3) =92a(4) =93a(5) =94a(6) =95a(7) =96a(8) =97a(9) =98a(10) =99a(11) =100a(12) =901a(13) =912a(14) =923a(15) =934a(16) =945a(17) =956a(18) =967a(19) =978a(20) =989a(21) =1000a(22) =9001a(23) =9011a(24) =9021a(25) =9031a(26) =9041a(27) =9051a(28) =9061a(29) =9071