Numbers k such that (91*10^k + 11)/3 is prime.

Terms

a(0) =1a(1) =2a(2) =4a(3) =6a(4) =12a(5) =13a(6) =14a(7) =17a(8) =19a(9) =31a(10) =50a(11) =58a(12) =81a(13) =87a(14) =161a(15) =234a(16) =244a(17) =482a(18) =505a(19) =676a(20) =1111a(21) =1707a(22) =1929a(23) =2695a(24) =3819a(25) =7708a(26) =28958a(27) =44652a(28) =51508a(29) =56892