Numbers n of the form k + reverse(k) for exactly two k.

Terms

a(0) =22a(1) =187a(2) =202a(3) =222a(4) =242a(5) =262a(6) =282a(7) =302a(8) =322a(9) =342a(10) =362a(11) =382a(12) =1717a(13) =1737a(14) =1757a(15) =1777a(16) =1797a(17) =1817a(18) =1837a(19) =1857a(20) =1877a(21) =1897a(22) =2002a(23) =2871a(24) =3982a(25) =11211a(26) =11411a(27) =11611a(28) =11811a(29) =12011