Numbers k such that (16*10^k + 41)/3 is prime.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =6a(5) =7a(6) =8a(7) =12a(8) =17a(9) =272a(10) =315a(11) =405a(12) =560a(13) =728a(14) =919a(15) =1578a(16) =1608a(17) =4736a(18) =7751a(19) =18332a(20) =22787a(21) =50005a(22) =69265a(23) =91032a(24) =92591a(25) =148071a(26) =168181