Numbers k such that (43*10^k + 101)/9 is prime.

Terms

a(0) =1a(1) =3a(2) =6a(3) =9a(4) =12a(5) =27a(6) =33a(7) =45a(8) =63a(9) =81a(10) =351a(11) =357a(12) =540a(13) =582a(14) =1998a(15) =2401a(16) =4140a(17) =4675a(18) =6963a(19) =7873a(20) =19749a(21) =138648a(22) =173826a(23) =190351