Numbers k such that 7*10^k - 99 is prime.

Terms

a(0) =2a(1) =8a(2) =14a(3) =30a(4) =43a(5) =61a(6) =79a(7) =84a(8) =109a(9) =121a(10) =203a(11) =211a(12) =215a(13) =224a(14) =318a(15) =392a(16) =1061a(17) =1304a(18) =1535a(19) =1559a(20) =6989a(21) =9201a(22) =13485a(23) =35462a(24) =39408a(25) =43136a(26) =70680a(27) =126600a(28) =132884a(29) =171535