Numbers k such that (73*10^k + 143)/9 is prime.

Terms

a(0) =1a(1) =2a(2) =5a(3) =7a(4) =13a(5) =16a(6) =17a(7) =25a(8) =44a(9) =52a(10) =197a(11) =233a(12) =241a(13) =389a(14) =838a(15) =856a(16) =2252a(17) =2945a(18) =5207a(19) =8020a(20) =10708a(21) =14663a(22) =16885a(23) =20366a(24) =20450a(25) =24121a(26) =24437a(27) =29348a(28) =134939