Smallest prime obtained by appending one or more 1's to n, -1 if no such prime exists.
A112386
Smallest prime obtained by appending one or more 1's to n, -1 if no such prime exists.
Terms
- a(0) =11a(1) =211a(2) =31a(3) =41a(4) =511111a(5) =61a(6) =71a(7) =811a(8) =911a(9) =101a(12) =131a(13) =14111111111a(14) =151a(15) =16111a(16) =1711111111a(17) =181a(18) =191a(19) =2011a(20) =211a(21) =22111a(22) =2311a(23) =241
External references
- oeis: A112386