a(1) = 17 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).
A075602
a(1) = 17 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) =17a(1) =1171a(2) =211711a(3) =32117117a(4) =6321171179a(5) =263211711799
External references
- oeis: A075602