Numbers k such that (61*10^k + 119)/9 is prime.

Terms

a(0) =2a(1) =3a(2) =5a(3) =9a(4) =11a(5) =18a(6) =63a(7) =71a(8) =162a(9) =171a(10) =407a(11) =732a(12) =821a(13) =1320a(14) =1439a(15) =1607a(16) =3008a(17) =3159a(18) =10679a(19) =13376a(20) =59294a(21) =183294