Numbers k such that (107*10^k - 17)/9 is prime.

Terms

a(0) =2a(1) =3a(2) =8a(3) =12a(4) =24a(5) =105a(6) =140a(7) =231a(8) =234a(9) =260a(10) =294a(11) =354a(12) =602a(13) =813a(14) =1562a(15) =2961a(16) =3450a(17) =5622a(18) =8121a(19) =9014a(20) =23052a(21) =38505a(22) =41139a(23) =63576