Numbers k such that (26*10^k - 167)/3 is prime.

Terms

a(0) =1a(1) =2a(2) =27a(3) =38a(4) =51a(5) =122a(6) =200a(7) =408a(8) =422a(9) =680a(10) =732a(11) =1128a(12) =2448a(13) =3237a(14) =8964a(15) =11208a(16) =14970a(17) =15769a(18) =17411a(19) =27813a(20) =46521a(21) =101537a(22) =164643a(23) =167861