Positive palindromes that are not the sum of two positive palindromes.

Terms

a(0) =1a(1) =111a(2) =131a(3) =141a(4) =151a(5) =161a(6) =171a(7) =181a(8) =191a(9) =1331a(10) =1441a(11) =1551a(12) =1661a(13) =1771a(14) =1881a(15) =1991a(16) =10301a(17) =10401a(18) =10501a(19) =10601a(20) =10701a(21) =10801a(22) =10901a(23) =11111a(24) =11211a(25) =11311a(26) =11411a(27) =11511a(28) =11611a(29) =11711