Lucky numbers that are both palindromic and nonprime.

Terms

a(0) =1a(1) =9a(2) =33a(3) =99a(4) =111a(5) =141a(6) =171a(7) =303a(8) =393a(9) =535a(10) =717a(11) =777a(12) =979a(13) =1441a(14) =1771a(15) =3003a(16) =3223a(17) =3663a(18) =5335a(19) =7447a(20) =9009a(21) =9339a(22) =9999a(23) =11011a(24) =11811a(25) =11911a(26) =12121a(27) =12321a(28) =12621a(29) =13531