Undulating palindromic primes: numbers that are prime, palindromic in base 10, and the digits alternate: ababab... with a != b.

A059758

Undulating palindromic primes: numbers that are prime, palindromic in base 10, and the digits alternate: ababab... with a != b.

Terms

    a(0) =101a(1) =131a(2) =151a(3) =181a(4) =191a(5) =313a(6) =353a(7) =373a(8) =383a(9) =727a(10) =757a(11) =787a(12) =797a(13) =919a(14) =929a(15) =18181a(16) =32323a(17) =35353a(18) =72727a(19) =74747a(20) =78787a(21) =94949a(22) =95959a(23) =1212121a(24) =1616161a(25) =323232323a(26) =383838383a(27) =727272727a(28) =919191919a(29) =929292929

External references