Numbers k such that (85*10^k - 103)/9 is prime.

Terms

a(0) =1a(1) =3a(2) =4a(3) =16a(4) =28a(5) =45a(6) =46a(7) =67a(8) =93a(9) =130a(10) =265a(11) =321a(12) =376a(13) =717a(14) =934a(15) =1047a(16) =1420a(17) =2547a(18) =5683a(19) =8593a(20) =9445a(21) =31086a(22) =33382a(23) =43089a(24) =76021a(25) =90745