Palindromic Super-2 Numbers.

Terms

a(0) =131a(1) =181a(2) =333a(3) =454a(4) =919a(5) =969a(6) =1331a(7) =1881a(8) =3333a(9) =6556a(10) =9119a(11) =9669a(12) =10301a(13) =10501a(14) =10601a(15) =10701a(16) =13031a(17) =13131a(18) =13231a(19) =13331a(20) =13431a(21) =13531a(22) =13631a(23) =13731a(24) =13831a(25) =13931a(26) =14541a(27) =16161a(28) =16761a(29) =18081