Numbers k such that (26*10^k - 107)/9 is prime.

Terms

a(0) =1a(1) =2a(2) =5a(3) =7a(4) =13a(5) =23a(6) =25a(7) =44a(8) =110a(9) =157a(10) =751a(11) =853a(12) =964a(13) =1135a(14) =2588a(15) =2602a(16) =2807a(17) =2888a(18) =3272a(19) =4046a(20) =4798a(21) =16720a(22) =21410a(23) =22285a(24) =25888a(25) =34586a(26) =51764