Numbers k such that (62*10^k - 197)/9 is prime.

Terms

a(0) =1a(1) =5a(2) =7a(3) =14a(4) =17a(5) =40a(6) =53a(7) =95a(8) =97a(9) =113a(10) =122a(11) =125a(12) =145a(13) =374a(14) =470a(15) =485a(16) =1685a(17) =5324a(18) =8035a(19) =10745a(20) =52448a(21) =68059