Numbers k such that 5*10^k - 43 is prime.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =6a(6) =10a(7) =22a(8) =23a(9) =30a(10) =51a(11) =65a(12) =110a(13) =124a(14) =248a(15) =1254a(16) =1416a(17) =1515a(18) =1797a(19) =6262a(20) =9264a(21) =12213a(22) =17382a(23) =17884a(24) =19502a(25) =22408a(26) =116966a(27) =192422