Palindromic nonprime numbers starting with a digit 1.

Terms

a(0) =1a(1) =111a(2) =121a(3) =141a(4) =161a(5) =171a(6) =1001a(7) =1111a(8) =1221a(9) =1331a(10) =1441a(11) =1551a(12) =1661a(13) =1771a(14) =1881a(15) =1991a(16) =10001a(17) =10101a(18) =10201a(19) =10401a(20) =10701a(21) =10801a(22) =10901a(23) =11011a(24) =11111a(25) =11211a(26) =11511a(27) =11611a(28) =11711a(29) =11811