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).
17, 1171, 211711, 32117117, 6321171179, 263211711799, 42632117117999, 6426321171179993, 564263211711799931, 15642632117117999311, 1156426321171179993119, 311564263211711799931199
Offset: 1
Extensions
More terms from Sascha Kurz, Jan 23 2003