k such that 10^(2*k+1)-j*10^k-1 is prime for some j = 1, 2, 4, 5, 7 or 8.

Terms

a(0) =1a(1) =5a(2) =8a(3) =9a(4) =13a(5) =14a(6) =22a(7) =26a(8) =36a(9) =43a(10) =88a(11) =104a(12) =112a(13) =118a(14) =169a(15) =181a(16) =198a(17) =352a(18) =378a(19) =530a(20) =622a(21) =697a(22) =1136a(23) =1246a(24) =1315a(25) =1579a(26) =1798a(27) =1918a(28) =2874a(29) =2917