Numbers k such that (23*10^k - 83)/3 is prime.

Terms

a(0) =2a(1) =3a(2) =5a(3) =6a(4) =16a(5) =146a(6) =234a(7) =272a(8) =291a(9) =419a(10) =435a(11) =470a(12) =501a(13) =900a(14) =3080a(15) =3360a(16) =7881a(17) =10865a(18) =13994a(19) =20031a(20) =38184a(21) =43802a(22) =89705a(23) =165060a(24) =168608