Palindromic primes with middle digit 6.

Terms

a(0) =10601a(1) =16661a(2) =70607a(3) =73637a(4) =76667a(5) =79697a(6) =94649a(7) =98689a(8) =1126211a(9) =1186811a(10) =1196911a(11) =1276721a(12) =1286821a(13) =1456541a(14) =1486841a(15) =1496941a(16) =1556551a(17) =1616161a(18) =1646461a(19) =1826281a(20) =1856581a(21) =1876781a(22) =1936391a(23) =1976791a(24) =3016103a(25) =3026203