Smallest prime of the form the concatenation r*k for r = 1 to n followed by a 1.
A089328
Smallest prime of the form the concatenation r*k for r = 1 to n followed by a 1.
Terms
- a(0) =11a(1) =241a(2) =1231a(3) =71421281a(4) =2468101a(5) =246810121a(8) =1234567891
External references
- oeis: A089328