Numbers k such that (91*10^k + 17)/9 is prime.

Terms

a(0) =1a(1) =2a(2) =4a(3) =7a(4) =14a(5) =19a(6) =20a(7) =53a(8) =62a(9) =65a(10) =68a(11) =130a(12) =170a(13) =358a(14) =449a(15) =595a(16) =703a(17) =1502a(18) =2192a(19) =8582a(20) =31573a(21) =39839a(22) =45022