Palindromic in bases 10 and 16.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =5a(6) =6a(7) =7a(8) =8a(9) =9a(10) =11a(11) =353a(12) =626a(13) =787a(14) =979a(15) =1991a(16) =3003a(17) =39593a(18) =41514a(19) =90209a(20) =94049a(21) =96369a(22) =98689a(23) =333333a(24) =512215a(25) =666666a(26) =749947a(27) =845548a(28) =1612161a(29) =2485842