Palindromic primes in which a single digit is sandwiched between strings of 3's.

A088282

Palindromic primes in which a single digit is sandwiched between strings of 3's.

Terms

    a(0) =313a(1) =353a(2) =373a(3) =383a(4) =33533a(5) =3331333a(6) =3337333

External references