a(1) = 3; for n>=1, a(n+1) is the smallest palindromic prime with a(n) as a central substring.

A082563

a(1) = 3; for n>=1, a(n+1) is the smallest palindromic prime with a(n) as a central substring.

Terms

    a(0) =3a(1) =131a(2) =11311a(3) =121131121

External references