Numbers k such that (23*10^k - 59)/9 is prime.

Terms

a(0) =3a(1) =6a(2) =10a(3) =16a(4) =22a(5) =30a(6) =33a(7) =48a(8) =61a(9) =66a(10) =147a(11) =300a(12) =372a(13) =925a(14) =1750a(15) =2026a(16) =2721a(17) =3916a(18) =5704a(19) =6856a(20) =12883a(21) =57333a(22) =92244a(23) =147649a(24) =150763