Undulating palindromic primes of form ABABAB...BA with alternating prime and nonprime digits.

A039944

Undulating palindromic primes of form ABABAB...BA with alternating prime and nonprime digits.

Terms

    a(0) =2a(1) =3a(2) =5a(3) =7a(4) =131a(5) =151a(6) =313a(7) =383a(8) =787a(9) =797a(10) =929a(11) =74747a(12) =78787a(13) =95959a(14) =1212121a(15) =383838383a(16) =929292929a(17) =979797979a(18) =12121212121

External references