a(1) = 3 and then the smallest prime that is obtained by placing digits on both sides of the previous term. Or smallest prime that encompasses a(n-1).
A075597
a(1) = 3 and then the smallest prime that is obtained by placing digits on both sides of the previous term. Or smallest prime that encompasses a(n-1).
Terms
- a(0) =3a(1) =131a(2) =11311a(3) =3113111a(4) =231131111a(5) =22311311119
External references
- oeis: A075597