Numbers k such that (28*10^k + 773)/9 is prime.

Terms

a(0) =0a(1) =2a(2) =5a(3) =6a(4) =11a(5) =20a(6) =32a(7) =59a(8) =81a(9) =98a(10) =128a(11) =437a(12) =758a(13) =989a(14) =998a(15) =1403a(16) =1548a(17) =1907a(18) =1914a(19) =2219a(20) =5414a(21) =9047a(22) =13196a(23) =18518a(24) =28382