Take each palindrome ending in 1, 3, 7, or 9 and find smallest prime formed by the digits of that palindrome, followed by a string of digits, followed by the palindrome again.
A090272
Take each palindrome ending in 1, 3, 7, or 9 and find smallest prime formed by the digits of that palindrome, followed by a string of digits, followed by the palindrome again.
Terms
- a(0) =11a(1) =313a(2) =727a(3) =919a(4) =11311a(5) =33533a(6) =77377a(7) =990599a(8) =10101101a(9) =1114111a(10) =1212121a(11) =1311131a(12) =1411141a(13) =1513151a(14) =1611161a(15) =1712171a(16) =18102181a(17) =1917191a(18) =30301303a(19) =3135313a(20) =3233323a(21) =3331333a(22) =3439343a(23) =35301353a(24) =3635363a(25) =3732373a(26) =3836383
External references
- oeis: A090272