Numbers k such that (8*10^k - 83)/3 is prime.

Terms

a(0) =2a(1) =12a(2) =18a(3) =24a(4) =42a(5) =54a(6) =250a(7) =378a(8) =472a(9) =490a(10) =722a(11) =2722a(12) =3109a(13) =3296a(14) =7342a(15) =10507a(16) =14206a(17) =20088a(18) =27542a(19) =65507a(20) =76220