Numbers k such that (16*10^k + 197) / 3 is prime.

Terms

a(0) =0a(1) =2a(2) =3a(3) =5a(4) =8a(5) =10a(6) =111a(7) =114a(8) =456a(9) =1158a(10) =1241a(11) =1462a(12) =1736a(13) =1827a(14) =2523a(15) =2812a(16) =3305a(17) =5392a(18) =5897a(19) =6174a(20) =13683a(21) =17088a(22) =23771a(23) =28448a(24) =127259a(25) =142058a(26) =164122